Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp TLC 274 CN Multi-purpose PDIP 14

TLC274, TLC274A, TLC274B, TLC274Y, TLC279

LinCMOS



PRECISION QUAD OPERATIONAL AMPLIFIERS

SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Trimmed Offset Voltage:

TLC279 . . . 900 µV Max at 25°C,

= 5 V

Input Offset Voltage Drift...Typically

0.1 µV/Month, Including the First 30 Days

Wide Range of Supply Voltages Over

Specified Temperature Range:

0°C to 70°C...3 V to 16 V

–40°C to 85°C...4 V to 16 V

–55°C to 125°C...4 V to 16 V

Single-Supply Operation

Common-Mode Input Voltage Range

Extends Below the Negative Rail (C-Suffix

and I-Suffix Versions)

Low Noise...Typically 25 nV/√Hz

at f = 1 kHz

Output Voltage Range Includes Negative

Rail

High Input Impedance...10

Ω Typ

ESD-Protection Circuitry

Small-Outline Package Option Also

Available in Tape and Reel

Designed-In Latch-Up Immunity

description

The TLC274 and TLC279 quad operational

amplifiers combine a wide range of input offset

voltage grades with low offset voltage drift, high

input impedance, low noise, and speeds

approaching that of general-purpose BiFET

devices.

These devices use Texas Instruments

silicon-gate LinCMOS technology, which

provides offset voltage stability far exceeding the

stability available with conventional metal-gate

processes.

The extremely high input impedance, low bias

currents, and high slew rates make these

cost-effective devices ideal for applications which

have previously been reserved for BiFET and

NFET products. Four offset voltage grades are

available (C-suffix and I-suffix types), ranging

from the low-cost TLC274 (10 µV) to the high-

precision TLC279 (900 µV). These advantages, in

combination with good common-mode rejection

and supply voltage rejection, make these devices

a good choice for new state-of-the-art designs as

well as for upgrading existing designs.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

–1200

Percentage of Units – %

– Input Offset Voltage – µV

1200

–600 0 600

= 5 V

= 25°C

N Package

DISTRIBUTION OF TLC279

INPUT OFFSET VOLTAGE

1OUT

1IN–

1IN+

2IN+

2IN–

2OUT

4OUT

4IN–

4IN+

GND

3IN+

3IN–

3OUT

D, J, N, OR PW PACKAGE

(TOP VIEW)

3212019

910111213

4IN+

GND

3IN+

1IN+

2IN+

FK PACKAGE

(TOP VIEW)

1IN –

1OUT

3OUT

3IN –

4OUT

4IN –

2IN –

2OUT

NC – No internal connection

290 Units Tested From 2 Wafer Lots

LinCMOS is a trademark of Texas Instruments Incorporated.

Summary of content (37 pages)

PAGE 1
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 D D D D D D D D D D, J, N, OR PW PACKAGE (TOP VIEW) 1OUT 1IN – 1IN + VDD 2IN + 2IN – 2OUT 1 14 2 13 3 12 4 11 5 10 6 9 7 8 4OUT 4IN – 4IN + GND 3IN + 3IN – 3OUT FK PACKAGE (TOP VIEW) 1IN – 1OUT NC 4OUT 4IN – D Trimmed Offset Voltage: TLC279 . . . 900 µV Max at 25°C, VDD = 5 V Input Offset Voltage Drift . . . Typically 0.
PAGE 2
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 description (continued) In general, many features associated with bipolar technology are available on LinCMOS operational amplifiers, without the power penalties of bipolar technology. General applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering are easily designed with the TLC274 and TLC279.
PAGE 3
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 equivalent schematic (each amplifier) VDD P3 P4 R6 R1 R2 IN – N5 P5 P6 P2 P1 IN + C1 R5 OUT N3 N1 R3 N4 N2 D1 R4 D2 N6 N7 R7 GND POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3
PAGE 4
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TLC274Y chip information These chips, when properly assembled, display characteristics similar to the TLC274C. Thermal compression or ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with conductive epoxy or a gold-silicon preform.
PAGE 5
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 6
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC274C, TLC274AC, TLC274BC, TLC279C MIN TLC274C VIO VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC274AC Full range TLC274BC VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range TLC279C VO = 1.
PAGE 7
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC274C, TLC274AC, TLC274BC, TLC279C MIN TLC274C VIO VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC274AC Full range TLC274BC VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range TLC279C VO = 1.
PAGE 8
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC274I, TLC274AI, TLC274BI, TLC279I MIN TLC274I VIO VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC274AI Full range TLC274BI VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range TLC279I VO = 1.
PAGE 9
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC274I, TLC274AI, TLC274BI, TLC279I MIN TLC274I VIO VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC274AI Full range TLC274BI VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range TLC279I VO = 1.
PAGE 10
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER VIO TEST CONDITIONS TLC274M VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC279M VO = 1.
PAGE 11
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless) otherwise noted) PARAMETER VIO TEST CONDITIONS TLC274M VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC279M VO = 1.
PAGE 12
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 operating characteristics at specified free-air temperature, VDD = 5 V PARAMETER TEST CONDITIONS TA TLC274C, TLC274AC, TLC274AC, TLC274BC, TLC279C MIN SR Slew rate at unity gain RL = 10 Ω, CL = 20 PF F, See Figure 1 VIPP = 1 V VIPP = 2.
PAGE 13
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 operating characteristics at specified free-air temperature, VDD = 5 V PARAMETER TEST CONDITIONS TA TLC274I, TLC274AI, TLC274BI, TLC279I MIN VIPP = 1 V SR Slew rate at unity gain RL = 10 kΩ, CL = 20 PF F, See Figure 1 VIPP = 2.
PAGE 14
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 operating characteristics at specified free-air temperature, VDD = 5 V PARAMETER TEST CONDITIONS VIPP = 1 V SR Slew rate at unity gain RL = 10 kΩ, CL = 20 PF F, See Figure 1 VIPP = 2.
PAGE 15
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 electrical characteristics, VDD = 5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS VIO Input offset voltage IIO IIB Input offset current (see Note 4) VICR Common-mode input voltage range (see Note 5) VOH VOL High-level output voltage AVD CMRR Large-signal differential voltage amplification kSVR Supply-voltage rejection ratio (∆VDD /∆VIO) IDD
PAGE 16
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 operating characteristics, VDD = 5 V, TA = 25°C PARAMETER TEST CONDITIONS MAX UNIT 3.6 RS = 20 Ω, See Figure 2 25 nV/√Hz CL = 20 PF, RL = 10 kΩ, 320 kHz CL = 20 PF, See Figure 3 1.
PAGE 17
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 PARAMETER MEASUREMENT INFORMATION single-supply versus split-supply test circuits Because the TLC274 and TLC279 are optimized for single-supply operation, circuit configurations used for the various tests often present some inconvenience since the input signal, in many cases, must be offset from ground.
PAGE 18
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 PARAMETER MEASUREMENT INFORMATION input bias current Because of the high input impedance of the TLC274 and TLC279 operational amplifiers, attempts to measure the input bias current can result in erroneous readings. The bias current at normal room ambient temperature is typically less than 1 pA, a value that is easily exceeded by leakages on the test socket.
PAGE 19
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 PARAMETER MEASUREMENT INFORMATION full-power response Full-power response, the frequency above which the operational amplifier slew rate limits the output voltage swing, is often specified two ways: full-linear response and full-peak response.
PAGE 20
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS Table of Graphs FIGURE VIO αVIO Input offset voltage Distribution Temperature coefficient of input offset voltage Distribution High-level g output voltage g vs High-level High level output out ut current vs Supply y voltage g vs Free-air temperature 10, 11 12 13 VOL Low level output voltage Low-level vs Common-mode Common mode input in ut
PAGE 21
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS DISTRIBUTION OF TLC274 INPUT OFFSET VOLTAGE DISTRIBUTION OF TLC274 INPUT OFFSET VOLTAGE Percentage of Units – % 50 ÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑ ÑÑÑÑÑÑÑÑÑÑÑÑ 60 753 Amplifiers Tested From 6 Wafer Lots VDD = 5 V TA= 25°C N Package 50 Percentage of Units – % 60 40 30 20 753 Amplifiers Tested From 6 Wafer Lots VDD = 10 V TA = 25°
PAGE 22
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT Q HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 16 VID = 100 mV TA = 25°C 4 VDD = 5 V 3 VDD = 4 V VDD = 3 V 2 1 0 VDD = 16 V 12 10 8 VDD = 10 V 6 4 2 0 0 –2 –4 –6 –8 – 10 0 –5 IOH – High-Level Output Current – mA – 10 – 15 – 20 – 25 – 30 – 35 Figure 11 HIGH-LEV
PAGE 23
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† LOW-LEVEL OUTPUT VOLTAGE vs COMMON-MODE INPUT VOLTAGE LOW-LEVEL OUTPUT VOLTAGE vs COMMON-MODE INPUT VOLTAGE 500 VDD = 5 V IOL = 5 mA TA = 25°C 650 VOL – Low-Level Output Voltage – mV VOL – Low-Level Output Voltage – mV 700 600 550 VID = – 100 mV 500 450 400 VID = – 1 V 350 450 400 VID = – 100 mV 0 1 2 3 VIC – Common-Mode Input Voltage –
PAGE 24
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT 1 3 VOL – Low-Level Output Voltage – V 0.9 0.8 VOL – Low-Level Output Voltage – V VID = – 1 V VIC = 0.5 V TA = 25°C VDD = 5 V 0.7 VDD = 4 V 0.6 VDD = 3 V 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5 6 7 IOL – Low-Level Output Current – mA 2.
PAGE 25
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† COMMON-MODE INPUT VOLTAGE POSITIVE LIMIT vs SUPPLY VOLTAGE 10000 VDD = 10 V VIC = 5 V See Note A 16 ÑÑÑ ÑÑÑÑÑ ÑÑ 1000 VIC – Common-Mode Input Voltage – V I IB and I IO – Input Bias and Offset Currents – pA INPUT BIAS CURRENT AND INPUT OFFSET CURRENT vs FREE-AIR TEMPERATURE IIB 100 IIO 10 1 0.
PAGE 26
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† SLEW RATE vs SUPPLY VOLTAGE SLEW RATE vs FREE-AIR TEMPERATURE 8 6 5 7 VDD = 10 V VIPP = 5.5 V 6 SR – Slew Rate – V/ µs 7 SR – Slew Rate – V/ µs ÑÑÑÑÑ ÑÑÑÑÑ 8 AV = 1 VIPP = 1 V RL = 10 k Ω CL = 20 pF TA = 25°C See Figure 1 4 3 2 VDD = 10 V VIPP = 1 V 5 4 3 VDD = 5 V VIPP = 1 V 2 1 VDD = 5 V VIPP = 2.
PAGE 27
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† UNITY-GAIN BANDWIDTH vs FREE-AIR TEMPERATURE UNITY-GAIN BANDWIDTH vs SUPPLY VOLTAGE 3 2.5 B1 – Unity-Gain Bandwidth – MHz B1 – Unity-Gain Bandwidth – MHz VDD = 5 V VI = 10 mV CL = 20 pF See Figure 3 2.5 2 1.5 1 – 75 VI = 10 mV CL = 20 pF TA = 25°C See Figure 3 2 1.
PAGE 28
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† LARGE-SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT vs FREQUENCY 107 VDD = 10 V RL = 10 k Ω TA = 25°C ÁÁ ÁÁ ÁÁ 105 0° 104 30° AVD 103 60° 102 90° Phase Shift 10 120° 1 150° 0.
PAGE 29
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS PHASE MARGIN vs CAPACITIVE LOAD EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY 400 VDD = 5 V VI = 10 mV TA = 25°C See Figure 3 φ m – Phase Margin 45° 40° 35° 30° 25° 0 10 20 30 40 50 60 70 80 CL – Capacitive Load – pF 90 100 Vn – Equivalent Input Noise Voltage – nV/ Hz 50° VDD = 5 V RS = 20 Ω TA = 25°C See Figure 2 300 200 100 0 1
PAGE 30
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION single-supply operation While the TLC274 and TLC279 perform well using dual power supplies (also called balanced or split supplies), the design is optimized for single-supply operation. This design includes an input common-mode voltage range that encompasses ground as well as an output voltage range that pulls down to ground.
PAGE 31
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION input characteristics The TLC274 and TLC279 are specified with a minimum and a maximum input voltage that, if exceeded at either input, could cause the device to malfunction. Exceeding this specified range is a common problem, especially in single-supply operation.
PAGE 32
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION output characteristics (continued) (a) CL = 20 pF, RL = NO LOAD (b) CL = 130 pF, RL = NO LOAD 2.5 V – VO + VI CL TA = 25°C f = 1 kHz VIPP = 1 V – 2.5 V (d) TEST CIRCUIT (c) CL = 150 pF, RL = NO LOAD Figure 41.
PAGE 33
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION output characteristics (continued) VDD C + IP RP VO – – VI IF Rp = + R2 R1 VO IL RL VDD – VO IF + IL + IP Figure 43. Compensation for Input Capacitance IP = Pullup current required by the operational amplifier (typically 500 µA) Figure 42.
PAGE 34
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION 10 kΩ 10 kΩ 0.016 µF 10 kΩ 10 kΩ 1/4 TLC274 5V – 1/4 TLC274 – 10 kΩ – VI 0.016 µF 1/4 TLC274 Low Pass + + + HIgh Pass 5 kΩ Band Pass R = 5 kΩ (3/d–1) (see Note A) NOTE A: d = damping factor, 1/Q Figure 44. State-Variable Filter 12 V VI + 1/4 TLC274 H.P. 5082 - 2835 + 1/4 TLC274 – 0.5 µF Mylar N.O. Reset – Figure 45.
PAGE 35
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION VI (see Note A) 100 kΩ 1.2 kΩ 4.7 kΩ – TL431 1 kΩ 1/4 TLC274 20 kΩ 0.1 µF 0.47 µF TIP31 15 Ω + TIS193 250 µF, 25 V + – VO (see Note B) 10 kΩ 47 kΩ 0.01 µF 110 Ω 22 kΩ NOTES: B. VI = 3.5 V to 15 V C. VO = 2 V, 0 to 1 A Figure 46. Logic-Array Power Supply VO (see Note A) 9V 10 kΩ 0.
PAGE 36
TLC274, TLC274A, TLC274B, TLC274Y, TLC279 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS SLOS092B – SEPTEMBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION 5V VI – + 10 kΩ 1/4 TLC279 100 kΩ – – 1/4 TLC279 VO + 10 kΩ – 10 kΩ 1/4 TLC279 R1, 10 kΩ (see Note A) + VI + 95 kΩ –5 V NOTE C: CMRR adjustment must be noninductive. Figure 48. Low-Power Instrumentation Amplifier 5V – R 10 MΩ R 10 MΩ 1/4 TLC274 VO + VI 2C 540 pF f NOTCH R/2 5 MΩ C 270 pF + 1 2pRC C 270 pF Figure 49.
PAGE 37
IMPORTANT NOTICE Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI’s standard warranty.