Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp TLC 272 CP Multi-purpose PDIP 8

TLC272, TLC272A, TLC272B, TLC272Y, TLC277

LinCMOS



PRECISION DUAL OPERATIONAL AMPLIFIERS

SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Trimmed Offset Voltage:

TLC277 . . . 500 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,

I-Suffix types)

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 TLC272 and TLC277 precision dual

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 pro-

cesses.

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 TLC272 (10 mV) to the high-precision TLC277 (500 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.

1OUT

1IN–

1IN+

GND

2OUT

2IN–

2IN+

D, JG, P, OR PW PACKAGE

3 2 1 20 19

910111213

2OUT

2IN–

1IN–

1IN+

FK PACKAGE

(TOP VIEW)

1OUT

2IN +

GND

NC – No internal connection

P Package

= 25°C

4000–400

800

– Input Offset Voltage – µV

Percentage of Units – %

–800

DISTRIBUTION OF TLC277

INPUT OFFSET VOLTAGE

473 Units Tested From 2 Wafer Lots

= 5 V

(TOP VIEW)

LinCMOS is a trademark of Texas Instruments Incorporated.

Summary of content (36 pages)

PAGE 1
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 D D D D D D D D D D, JG, P, OR PW PACKAGE (TOP VIEW) 1OUT 1IN – 1IN + GND 1 8 2 7 3 6 4 5 VDD 2OUT 2IN – 2IN + FK PACKAGE (TOP VIEW) NC 1OUT NC VDD NC D Trimmed Offset Voltage: TLC277 . . . 500 µV Max at 25°C, VDD = 5 V Input Offset Voltage Drift . . . Typically 0.
PAGE 2
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 AVAILABLE OPTIONS PACKAGED DEVICES TA VIOmax AT 25°C SMALL OUTLINE (D) CHIP CARRIER (FK) CERAMIC DIP (JG) PLASTIC DIP (P) TSSOP (PW) CHIP FORM (Y) 0°C to 70°c 500 µV 2 mV 5 mV 10mV TLC277CD TLC272BCD TLC272ACD TLC272CD — — — — — — — — TLC277CP TLC272BCP TLC272ACP TLC272CP — — — TLC272CPW — — — TLC272Y – 40°C to 85°C 500 µV 2 mV 5 mV 10 mV TLC277ID TLC272BI
PAGE 3
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 equivalent schematic (each amplifier) VDD P3 P4 R6 R1 N5 R2 IN – P5 P1 P6 P2 IN + R5 C1 OUT N3 N1 R3 N2 D1 N4 R4 N6 N7 R7 D2 GND TLC272Y chip information This chip, when properly assembled, displays characteristics similar to the TLC272C. Thermal compression or ultrasonic bonding may be used on the doped-aluminum bonding pads.
PAGE 4
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 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 5
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC272C, TLC272AC, TLC272BC, TLC277C MIN VIO TLC272C VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC272AC VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Input offset voltage TLC272BC TLC277C VO = 1.
PAGE 6
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC272C, TLC272AC, TLC272BC, TLC277C MIN VIO TLC272C VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC272AC VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Input offset voltage TLC272BC TLC277C VO = 1.4 V,, RS = 50 Ω, VO = 1.
PAGE 7
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC272I, TLC272AI, TLC272BI, TLC277I MIN VIO TLC272I VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC272AI VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Input offset voltage TLC272BI TLC277I VO = 1.
PAGE 8
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted) PARAMETER TEST CONDITIONS TA† TLC272I, TLC272AI, TLC272BI, TLC277I MIN VIO TLC272I VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ TLC272AI VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Input offset voltage TLC272BI TLC277I VO = 1.
PAGE 9
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted) PARAMETER VIO TEST CONDITIONS VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range TLC277M VO = 1.4 V,, RS = 50 Ω, VIC = 0,, RL = 10 kΩ Full range Input offset voltage Temperature coefficient of input offset voltage IIO Input offset current (see Note 4) VO = 2 2.
PAGE 10
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted) PARAMETER VIO TEST CONDITIONS TLC272M VO = 1.4 V, RS = 50 Ω, VIC = 0, RL = 10 kΩ Full range TLC277M VO = 1.
PAGE 11
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 electrical characteristics, VDD = 5 V, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS VIO Input offset voltage αVIO Temperature coefficient of 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 k
PAGE 12
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 operating characteristics at specified free-air temperature, VDD = 5 V PARAMETER TEST CONDITIONS TA TLC272C, TLC272AC, TLC272BC, TLC277C MIN VIPP = 1 V SR Slew rate at unity gain RL = 10 kΩ, CL = 20 pF, pF See Figure 1 VIPP = 2.
PAGE 13
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 operating characteristics at specified free-air temperature, VDD = 5 V PARAMETER TEST CONDITIONS TA TLC272I, TLC272AI, TLC272BI, TLC277I MIN VIPP = 1 V SR Slew rate at unity gain RL = 10 kΩ, CL = 20 pF, pF See Figure 1 VIPP = 2.
PAGE 14
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 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, pF See Figure 1 VIPP = 2.
PAGE 15
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 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 VO = VOH, See Figure 1 CL = 20 pF, RL = 10 kΩ, 320 kHz VI = 10 mV, VI = 10 mV, See Figure 3 CL = 20 pF, See Figure 3 1.
PAGE 16
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 PARAMETER MEASUREMENT INFORMATION single-supply versus split-supply test circuits Because the TLC272 and TLC277 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 17
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 PARAMETER MEASUREMENT INFORMATION input bias current Because of the high input impedance of the TLC272 and TLC277 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 18
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 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 19
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS Table of Graphs FIGURE VIO αVIO Input offset voltage Distribution 6, 7 Temperature coefficient of input offset voltage Distribution 8, 9 VOH 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 m
PAGE 20
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS DISTRIBUTION OF TLC272 INPUT OFFSET VOLTAGE DISTRIBUTION OF TLC272 INPUT OFFSET VOLTAGE Percentage of Units – % 50 40 ÌÌÌÌ ÌÌÌÌÌÌÌÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌÌÌÌÌÌÌÌ ÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ 60 753 Amplifiers Tested From 6 Wafer Lots VDD = 5 V TA = 25°C P Package 50 Percentage of Units – % 60 30 20 40 ÌÌÌÌÌÌÌÌÌÌÌ ÌÌÌÌ ÌÌÌÌÌÌÌÌÌÌÌ ÌÌÌÌ ÌÌÌÌ 753 Amplifiers T
PAGE 21
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT HIGH-LEVEL OUTPUT VOLTAGE vs HIGH-LEVEL OUTPUT CURRENT 16 VID = 100 mV TA = 25°C See Note A 4 VOH V OH – High-Level Output Voltage – V VOH VOH – High-Level Output Voltage – V 5 VDD = 5 V 3 VDD = 4 V VDD = 3 V 2 ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ ÁÁ 1 0 –2 –4 –6 –8 IOH – High-Level Output Current – mA
PAGE 22
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 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 650 VOL – Low-Level Output Voltage – mV VOL V VOL OL – Low-Level Output Voltage – mV 700 TA = 25°C 600 550 VID = – 100 mV 500 450 ÁÁ ÁÁ ÁÁ VID = – 1 V 350 300 0 450 400 VID = – 100 mV 0.5 1 1.5 2 2.5 3 3.
PAGE 23
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT V VOL OL – Low-Level Output Voltage – V 0.9 0.8 0.7 ÌÌÌÌ ÌÌÌÌ ÌÌÌÌ 3.0 VID = – 1 V VIC = 0.5 V TA = 25°C See Note A V VOL OL – Low-Level Output Voltage – V 1.0 LOW-LEVEL OUTPUT VOLTAGE vs LOW-LEVEL OUTPUT CURRENT VDD = 5 V VDD = 4 V 0.6 VDD = 3 V 0.5 0.4 ÁÁ ÁÁ 2.5 2.0 0.2 0.
PAGE 24
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† COMMON-MODE INPUT VOLTAGE POSITIVE LIMIT vs SUPPLY VOLTAGE 10000 16 VDD = 10 V VIC = 5 V See Note A ÌÌ 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 ÌÌ ÌÌ IIO 10 1 0.
PAGE 25
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† SLEW RATE vs FREE-AIR TEMPERATURE SLEW RATE vs SUPPLY VOLTAGE 8 8 AV = 1 VIPP = 1 V RL = 10 kΩ CL = 20 pF TA = 25°C See Figure 1 6 7 5 4 3 3 1 1 0 4 6 8 10 12 VDD – Supply Voltage – V 14 VDD = 10 V VIPP = 1 V 4 2 2 VDD = 10 V VIPP = 5.5 V 5 2 0 VDD = 5 V VIPP = 1 V VDD = 5 V VIPP = 2.
PAGE 26
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† UNITY-GAIN BANDWIDTH vs SUPPLY VOLTAGE UNITY-GAIN BANDWIDTH vs FREE-AIR TEMPERATURE 2.5 VDD = 5 V VI = 10 mV CL = 20 pF See Figure 3 2.5 B1 – Unity-Gain Bandwidth – MHz B1 – Unity-Gain Bandwidth – MHz 3.0 2.0 1.5 1.0 – 75 VI = 10 mV CL = 20 pF TA = 25°C See Figure 3 2.0 1.5 1.
PAGE 27
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS† LARGE-SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT vs FREQUENCY 10 7 VDD = 10 V RL = 10 kΩ TA = 25°C ÁÁ ÁÁ 10 5 0° 10 4 30° Phase Shift AVD A VD – Large-Signal Differential Voltage Amplification 10 6 AVD 10 3 60° 10 2 90° Phase Shift 101 120° 1 150° 0.
PAGE 28
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 TYPICAL CHARACTERISTICS PHASE MARGIN vs CAPACITIVE LOAD 50° VDD = 5 V VI = 10 mV TA = 25°C See Figure 3 φm m – Phase Margin 45° 40° 35° 30° 25° VN V n – Equivalent Input Noise Voltage – nV/ Hz EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY 400 VDD = 5 V RS = 20 Ω TA = 25°C See Figure 2 300 200 100 0 0 10 20 30 40 50 60 70 80 90 100 1 CL – Capacitive Load
PAGE 29
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION single-supply operation While the TLC272 and TLC277 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 30
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION input characteristics The TLC272 and TLC277 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 31
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION output characteristics (continued) (b) CL = 130 pF, RL = NO LOAD (a) CL = 20 pF, RL = NO LOAD 2.5 V – VO + VI TA = 25°C f = 1 kHz VIPP = 1 V CL – 2.5 V (c) CL = 150 pF, RL = NO LOAD (d) TEST CIRCUIT Figure 41.
PAGE 32
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION output characteristics (continued) VDD VI + IP RP VO – C IF R2 R1 IL RL – VO VDD – VO IF + IL + IP ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ + Rp = Ip = Pullup current required by the operational amplifier (typically 500 µA) Figure 42. Resistive Pullup to Increase VOH Figure 43.
PAGE 33
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION 10 kΩ 10 kΩ 0.016 µF 0.016 µF 10 kΩ – 10 kΩ 5V 10 kΩ 1/2 TLC272 – 1/2 TLC272 – VI 1/2 TLC272 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 + 1/2 TLC272 H.P. 5082-2835 + 1/2 TLC272 – 0.5 µF Mylar N.O. Reset VO – 100 kΩ Figure 45.
PAGE 34
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION VI (see Note A) 100 kΩ 1.2 kΩ 0.47 µF 4.7 kΩ – TL431 20 kΩ 1/2 TLC272 0.1 µF 1 kΩ TIP31 15 Ω + TIS193 250 µF, 25 V + – VO (see Note B) 10 kΩ 47 kΩ 0.01 µF 110 Ω 22 kΩ NOTES: A. VI = 3.5 to 15 V B. VO = 2 V, 0 to 1 A Figure 46. Logic-Array Power Supply VO (see Note A) 9V 10 kΩ 0.
PAGE 35
TLC272, TLC272A, TLC272B, TLC272Y, TLC277 LinCMOS PRECISION DUAL OPERATIONAL AMPLIFIERS SLOS091B – OCTOBER 1987 – REVISED AUGUST 1994 APPLICATION INFORMATION 5V VI – + 10 kΩ 1/2 TLC277 100 kΩ – – 1/2 TLC277 VO + 10 kΩ – 10 kΩ 1/2 TLC277 95 kΩ R1,10 kΩ (see Note A) + VI + –5 V NOTE B: CMRR adjustment must be noninductive. Figure 48. Low-Power Instrumentation Amplifier 5V – R 10 MΩ R 10 MΩ 1/2 TLC272 VO + VI 2C 540 pF f NOTCH R/2 5 MΩ C 270 pF + 1 2pRC C 270 pF Figure 49.
PAGE 36
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.