Datasheet

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TLC2654, TLC2654A

Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED

OPERATIONAL AMPLIFIERS

SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Input Noise Voltage

0.5 µV (Peak-to-Peak) Typ, f = 0 to 1 Hz

1.5 µV (Peak-to-Peak) Typ, f = 0 to 10 Hz

47 nV/√Hz

Typ, f = 10 Hz

13 nV/√Hz

Typ, f = 1 kHz

High Chopping Frequency . . . 10 kHz Typ

No Clock Noise Below 10 kHz

No Intermodulation Error Below 5 kHz

Low Input Offset Voltage

10 µV Max (TLC2654A)

Excellent Offset Voltage Stability

With Temperature . . . 0.05 µV/°C Max

. . . 135 dB Min (TLC2654A)

CMRR...110 dB Min (TLC2654A)

SVR

...110 dB Min

Single-Supply Operation

Common-Mode Input Voltage Range

Includes the Negative Rail

No Noise Degradation With External

Capacitors Connected to V

DD–

Available in Q-Temp Automotive

HighRel Automotive Applications

Configuration Control/Print Support

Qualification to Automotive Standards

description

The TLC2654 and TLC2654A are low-noise

chopper-stabilized operational amplifiers using

the Advanced LinCMOS process. Combining

this process with chopper-stabilization circuitry

makes excellent dc precision possible. In addition,

circuit techniques are added that give the

TLC2654 and TLC2654A superior noise perfor-

mance.

Chopper-stabilization techniques provide for extremely high dc precision by continuously nulling input offset

voltage even during variations in temperature, time, common-mode voltage, and power-supply voltage. The

high chopping frequency of the TLC2654 and TLC2654A (see Figure 1) provides excellent noise performance

in a frequency spectrum from near dc to 10 kHz. In addition, intermodulation or aliasing error is eliminated from

frequencies up to 5 kHz.

This high dc precision and low noise, coupled with the extremely high input impedance of the CMOS input stage,

makes the TLC2654 and TLC2654A ideal choices for a broad range of applications such as low-level,

low-frequency thermocouple amplifiers and strain gauges and wide-bandwidth and subsonic circuits. For

applications requiring even greater dc precision, use the TLC2652 or TLC2652A devices, which have a

chopping frequency of 450 Hz.

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.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

Advanced LinCMOS is a trademark of Texas Instruments.

IN–

IN+

DD–

DD+

OUT

CLAMP

D, JG, OR P PACKAGE

IN–

IN+

DD–

INT/EXT

CLK IN

CLK OUT

DD+

OUT

CLAMP

C RETURN

D, J, OR N PACKAGE

(TOP VIEW)

NC – No internal connection

3 2 1 20 19

910111213

CLK OUT

DD+

OUT

IN–

IN+

FK PACKAGE

(TOP VIEW)

C RETURN

CLAMP

INT/EXT

CLK IN

DD –

(TOP VIEW)

Summary of content (37 pages)

PAGE 1
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 D D D D D D D D High Chopping Frequency . . . 10 kHz Typ No Clock Noise Below 10 kHz No Intermodulation Error Below 5 kHz Low Input Offset Voltage 10 µV Max (TLC2654A) Excellent Offset Voltage Stability With Temperature . . . 0.05 µV/°C Max AVD . . . 135 dB Min (TLC2654A) CMRR . . . 110 dB Min (TLC2654A) kSVR . . .
PAGE 2
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY description (continued) The TLC2654 and TLC2654A common-mode input voltage range includes the negative rail, thereby providing superior performance in either single-supply or split-supply applications, even at power supply voltage levels as low as ± 2.3 V.
PAGE 3
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 functional block diagram VDD + 11 9 Clamp Circuit IN + IN – 5 10 + – 4 B B CIC Main CLAMP OUT A A + – A Null 1 CXB 7 CompensationBiasing Circuit B 2 CXA External Components 8 C RETURN VDD – Pin numbers shown are for the D (14 pin), J, and N packages.
PAGE 4
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VDD + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V Supply voltage, VDD – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 5
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 electrical characteristics at specified free-air temperature, VDD± = ±5 V (unless otherwise noted) PARAMETER VIO Input offset voltage g (see Note 4) αVIO Temperature coefficient of input offset voltage Input offset voltage long-term drift (see Note 5) TA† TEST CONDITIONS TLC2654C MIN 25°C 5 20 Input offset current IIB Input bias current VICR Common-mode input v
PAGE 6
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 operating characteristics at specified free-air temperature, VDD ± = ±5 V PARAMETER TEST CONDITIONS SR + Positive slew rate at unity gain SR – Negative slew rate at unity gain Vn Equivalent q input noise voltage g (see Note 7) f = 10 Hz VN(PP) Peak-to-peak equivalent q input noise voltage f = 0 to 1 Hz In Equivalent input noise current f = 10 kHz Gain-bandwidt
PAGE 7
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 electrical characteristics at specified free-air temperature, VDD ± = ±5 V (unless otherwise noted) PARAMETER VIO Input offset voltage g (see Note 4) αVIO Temperature coefficient of input offset voltage Input offset voltage long-term drift (see Note 5) TA† TEST CONDITIONS TLC2654I MIN 25°C 5 20 Input offset current IIB Input bias current VICR Common-mode input
PAGE 8
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 operating characteristics at specified free-air temperature, VDD ± = ±5 V PARAMETER TEST CONDITIONS SR + Positive slew rate at unity gain SR – Negative slew rate at unity gain VO = ± 2.
PAGE 9
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 electrical characteristics at specified free-air temperature, VDD ± = ±5 V (unless otherwise noted) PARAMETER TA† TEST CONDITIONS TLC2654Q TLC2654M MIN VIO Input offset voltage g (see Note 4) αVIO Temperature coefficient of input offset voltage Input offset voltage long-term drift (see Note 5) 25°C MAX 5 20 Input offset current IIB Input bias current VICR Com
PAGE 10
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 operating characteristics at specified free-air temperature, VDD ± = ±5 V PARAMETER SR + Positive slew rate at unity gain SR – Negative slew rate at unity gain Vn Equivalent input noise voltage VN(PP) In TEST CONDITIONS VO = ± 2 2.3 3V V, RL = 10 kΩ, kΩ CL = 100 pF MIN TYP 2 25°C 1.5 Full range 1.1 25°C 2.3 Full range 1.3 3.
PAGE 11
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS Table of Graphs FIGURE VIO Input offset voltage Distribution 2 Normalized input offset voltage vs Chopping frequency 3 IIO Input offset current vs Chopping g frequency q y vs Free-air temperature 4 5 IIB Input bias current vs Common-mode Common mode in input ut voltage vs Chopping g frequency q y vs Free-air temperature 6 7 8 Clamp curr
PAGE 12
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† NORMALIZED INPUT OFFSET VOLTAGE vs CHOPPING FREQUENCY DISTRIBUTION OF TLC2654 INPUT OFFSET VOLTAGE 40 20 VIO uV V IO – Normalized Input Offset Voltage – µV Percentage of Units – % 16 456 Units Tested From 4 Wafer Lots VDD ± = ± 5 V TA = 25°C N Package 12 8 4 0 –20 –16 –12 – 8 – 4 0 4 8 12 16 30 VDD ± = ± 5 V VIC = 0 TA = 25°C 20 10
PAGE 13
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† INPUT BIAS CURRENT vs CHOPPING FREQUENCY INPUT BIAS CURRENT vs COMMON-MODE INPUT VOLTAGE 1000 100 I IB – Input Bias Current – pA IIB IIIB IB – Input Bias Current – pA VDD ± = ± 5 V TA = 25°C 100 10 2 4 – 5 – 4 – 3 – 2 –1 0 1 3 VIC – Common-Mode Input Voltage – V VDD ± = ± 5 V VIC = 0 TA = 25°C 80 60 40 20 0 100 5 1k 10 k Chopping Freq
PAGE 14
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† MAXIMUM PEAK OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE MAXIMUM PEAK OUTPUT VOLTAGE vs OUTPUT CURRENT 5 VDD ± = ± 5 V TA = 25°C VOM – Maximum Peak Output Voltage – V VOM – Maximum Peak Output Voltage – V 5 4.8 VOM + VOM – 4.6 4.4 4.2 VOM + 2.5 VDD ± = ± 5 V RL = 10 kΩ 0 – 2.5 VOM – 4 0 0.4 0.8 1.2 1.
PAGE 15
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 60° 120 100 80° Phase Shift 80 100° AVD 60 120° 40 140° 20 160° VDD ± = ± 5 V RL = 10 kΩ CL = 100 pF TA = 25°C 0 –20 –40 10 100 1k 180° 200° 10 k 100 k 220° 10 M 1M AAVD VD – Large-Signal Differential Voltage Amplification – dB LARGE-SIGNAL DIFFERENTIAL VOLTAGE AMPLIFICATION AND PHASE SHIFT vs FREQUENCY Phase Shift AAVD VD – Large-Signal Differential V
PAGE 16
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† SUPPLY CURRENT vs SUPPLY VOLTAGE SUPPLY CURRENT vs FREE-AIR TEMPERATURE 2 2 VO = 0 No Load VDD ± = ± 7.5 V 1.2 TA = 25°C 0.8 TA = – 55°C IIDD DD – Supply Current – mA IIDD DD – Supply Current – mA 1.6 TA = 125°C 0.4 1.6 VDD ± = ± 5 V 1.2 VDD ± = ± 2.5 V 0.8 0.
PAGE 17
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† SLEW RATE vs SUPPLY VOLTAGE SLEW RATE vs FREE-AIR TEMPERATURE 5 4 SR – SR – 3 SR – Slew Rate – V/ V/us µs SR – Slew Rate – V/us V/ µ s 4 3 2 SR + 1 0 SR + 2 1 VDD ± = ± 5 V RL = 10 kΩ CL = 100 pF RL = 10 kΩ CL = 100 pF TA = 25°C 0 1 2 3 4 5 6 7 0 – 75 8 0 – 50 – 25 75 100 125 VOLTAGE-FOLLOWER LARGE-SIGNAL PULSE RESPONSE 100
PAGE 18
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS PEAK-TO-PEAK INPUT NOISE VOLTAGE vs CHOPPING FREQUENCY PEAK-TO-PEAK INPUT NOISE VOLTAGE vs CHOPPING FREQUENCY 5 VN(PP) uV VN(PP) – Peak-to-Peak Input Noise Voltage – µV VN(PP) uV VN(PP) – Peak-to-Peak Input Noise Voltage – µV 1.8 VDD ± = ± 5 V RS = 20 Ω f = 0 to 1 Hz TA = 25°C 1.6 1.4 1.2 1 0.8 0.6 0.4 0.
PAGE 19
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 TYPICAL CHARACTERISTICS† GAIN-BANDWIDTH PRODUCT vs FREE-AIR TEMPERATURE GAIN-BANDWIDTH PRODUCT vs SUPPLY VOLTAGE 2.6 RL = 10 kΩ CL = 100 pF TA = 25°C Gain-Bandwidth Product – MHz Gain-Bandwidth Product – MHz 2.1 2 1.9 VDD ± = ± 5 V RL = 10 kΩ CL = 100 pF 2.4 2.2 2 1.8 1.6 1.4 1.2 –75 1.
PAGE 20
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 APPLICATION INFORMATION capacitor selection and placement Leakage and dielectric absorption are the two important factors to consider when selecting external capacitors CXA and CXB. Both factors can cause system degradation, negating the performance advantages realized by using the TLC2654.
PAGE 21
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 APPLICATION INFORMATION overload recovery/output clamp (continued) The clamp is a switch that is automatically activated when the output is approximately 1 V from either supply rail. When connected to the inverting input (in parallel with the closed-loop feedback resistor), the closed-loop gain is reduced and the TLC2654 output is prevented from going into saturation.
PAGE 22
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 APPLICATION INFORMATION theory of operation (continued) During the nulling phase, switch A is closed, shorting the nulling amplifier inputs together and allowing the nulling amplifier to reduce its own input offset voltage by feeding its output signal back to an inverting input node.
PAGE 23
TLC2654, TLC2654A Advanced LinCMOS LOW-NOISE CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS SLOS020G – NOVEMBER 1988 – REVISED APRIL 2001 APPLICATION INFORMATION theory of operation (continued) The TLC2654 removes this restriction on ac performance by using a 10-kHz internal clock frequency. This high chopping frequency allows amplification of input signals up to 5 kHz without errors due to intermodulation and greatly reduces low-frequency noise.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 25-Sep-2013 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TLC2654C-14DR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TLC2654C-8DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TLC2654I-8DR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
PAGE 29
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TLC2654C-14DR SOIC D 14 2500 367.0 367.0 38.0 TLC2654C-8DR SOIC D 8 2500 340.5 338.1 20.6 TLC2654I-8DR SOIC D 8 2500 340.5 338.1 20.6 TLC2654I-8DR SOIC D 8 2500 367.0 367.0 35.
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MECHANICAL DATA MCER001A – JANUARY 1995 – REVISED JANUARY 1997 JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE 0.400 (10,16) 0.355 (9,00) 8 5 0.280 (7,11) 0.245 (6,22) 1 0.063 (1,60) 0.015 (0,38) 4 0.065 (1,65) 0.045 (1,14) 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.130 (3,30) MIN 0.023 (0,58) 0.015 (0,38) 0°–15° 0.100 (2,54) 0.014 (0,36) 0.008 (0,20) 4040107/C 08/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters).
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.