Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Zero drift SOIC 8

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.

APPLICATIONS

● TRANSDUCER APPLICATIONS

● TEMPERATURE MEASUREMENT

● ELECTRONIC SCALES

● MEDICAL INSTRUMENTATION

● BATTERY-POWERED INSTRUMENTS

● HANDHELD TEST EQUIPMENT

0.05µV/°C max, SINGLE-SUPPLY

CMOS OPERATIONAL AMPLIFIERS

Zerø-Drift Series

FEATURES

● LOW OFFSET VOLTAGE: 5µV (max)

● ZERO DRIFT: 0.05µV/°C (max)

● QUIESCENT CURRENT: 285µA

● SINGLE-SUPPLY OPERATION

● SINGLE AND DUAL VERSIONS

● SHUTDOWN

●

Micro

SIZE

PACKAGES

DESCRIPTION

The OPA334 and OPA335 series of CMOS operational

amplifiers use auto-zeroing techniques to simultaneously

provide very low offset voltage (5µV max), and near-zero drift

over time and temperature. These miniature, high-precision,

low quiescent current amplifiers offer high input impedance

and rail-to-rail output swing. Single or dual supplies as low as

+2.7V (±1.35V) and up to +5.5V (±2.75V) may be used.

These op amps are optimized for low-voltage, single-supply

operation.

The OPA334 family includes a shutdown mode. Under logic

control, the amplifiers can be switched from normal operation

to a standby current of 2µA. When the Enable pin is con-

nected high, the amplifier is active. Connecting Enable low

disables the amplifier, and places the output in a high-

impedance state.

The OPA334 (single version with shutdown) comes in

Micro

SIZE SOT23-6. The OPA335 (single version without

shutdown) is available in SOT23-5, and SO-8. The OPA2334

(dual version with shutdown) comes in

Micro

SIZE MSOP-10.

The OPA2335 (dual version without shutdown) is offered in

the MSOP-8 and SO-8 packages. All versions are specified

for operation from –40°C to +125°C.

OPA334

OPA2334

OPA335

OPA2335

SBOS245D – JUNE 2002 – REVISED JULY 2003

OFFSET VOLTAGE PRODUCTION DISTRIBUTION

Offset Voltage (µV)

–3.0

–2.7

–2.4

–2.1

–1.8

–1.5

–1.2

–0.9

–0.6

–0.3

0.3

0.6

0.9

1.2

1.5

1.8

2.1

2.4

2.7

3.0

Population

OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION

Offset Voltage Drift (µV/°C)

Population

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

Absolute Value;

Centered Around Zero

www.ti.com

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.

All trademarks are the property of their respective owners.

Summary of content (31 pages)

PAGE 1
OPA334 OPA2334 OPA335 OPA2335 OPA3 35 OPA2 OPA2 334 335 OPA23 35 SBOS245D – JUNE 2002 – REVISED JULY 2003 0.05µV/°C max, SINGLE-SUPPLY CMOS OPERATIONAL AMPLIFIERS Zerø-Drift Series FEATURES DESCRIPTION ● ● ● ● ● ● ● The OPA334 and OPA335 series of CMOS operational amplifiers use auto-zeroing techniques to simultaneously provide very low offset voltage (5µV max), and near-zero drift over time and temperature.
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ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC DISCHARGE SENSITIVITY Supply Voltage .................................................................................... +7V Signal Input Terminals, Voltage(2) ........................... –0.5V to (V+) + 0.5V Current(2) .................................................. ±10mA Output Short Circuit(3) .............................................................. Continuous Operating Temperature ..................................................
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ELECTRICAL CHARACTERISTICS Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS /2, and VOUT = VS /2, unless otherwise noted. OPA334AI, OPA335AI OPA2334AI, OPA2335AI PARAMETER OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply Long-Term Stability(1) Channel Separation, dc CONDITION VOS dVOS /dT PSRR VCM = VS /2 TYP 1 ±0.02 ±1 VS = +2.7V to +5.5V, VCM = 0, Over Temperature MAX UNITS 5 µV µV/°C µV/V ±0.
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TYPICAL CHARACTERISTICS At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS /2, and VOUT = VS /2, unless otherwise noted. OFFSET VOLTAGE PRODUCTION DISTRIBUTION 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 0.005 0.010 Absolute Value; Centered Around Zero 0 –3.0 –2.7 –2.4 –2.1 –1.8 –1.5 –1.2 –0.9 –0.6 –0.3 0 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.
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TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS /2, and VOUT = VS /2, unless otherwise noted. LARGE-SIGNAL RESPONSE OPEN-LOOP GAIN/PHASE vs FREQUENCY 140 –80 –100 80 –110 –120 Gain 40 –130 20 –140 0 –150 –20 0.
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TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS /2, and VOUT = VS /2, unless otherwise noted. POWER-SUPPLY REJECTION RATIO vs FREQUENCY SAMPLING FREQUENCY vs SUPPLY VOLTAGE 11.0 10.9 120 +PSRR 10.8 100 Frequency (kHz) Power-Supply Rejection Ratio (dB) 140 80 60 40 –PSRR 10.7 10.6 10.5 10.4 10.3 10.2 20 10.1 0 10.0 10 100 10k 100k 1M 2.7 3.2 3.7 4.2 4.7 Frequency (Hz) Supply Voltage (V) NOISE vs FREQUENCY 0.01Hz TO 10Hz NOISE 5.2 5.
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TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = +5V, RL = 10kΩ connected to VS /2, and VOUT = VS /2, unless otherwise noted. SETTLING TIME vs CLOSED-LOOP GAIN COMMON-MODE RANGE vs SUPPLY VOLTAGE 4.5 Unity-gain requires one complete Auto-Zero Cycle—see text. 4.0 Common-Mode Range (V) Settling Time (µs) 100 0.01% 10 0.1% 3.5 Maximum Common-Mode 3.0 2.5 2.0 1.5 1.0 0.5 Minimum Common-Mode 0 –0.5 1 1 10 100 2.7 3.2 Gain (V/V) 4.2 4.7 5.2 5.
PAGE 8
Normally, input bias current is approximately 70pA; however, input voltages exceeding the power supplies can cause excessive current to flow in or out of the input pins. Momentary voltages greater than the power supply can be tolerated if the input current is limited to 10mA. This is easily accomplished with an input resistor, as shown in Figure 1. Current-limiting resistor required if input voltage exceeds supply rails by ≥ 0.5V. swing limit of a single-supply op amp.
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4.096V REF3040 +5V + 0.1µF R9 150kΩ R1 6.04kΩ R5 31.6kΩ D1 +5V 0.1µF + – R2 2.94kΩ – + + R2 549Ω R4 6.04kΩ VO OPA335 R6 200Ω K-Type Thermocouple 40.7µV/°C Zero Adj. R3 60.4Ω FIGURE 3. Temperature Measurement Circuit. IIN R1 IIN R1 +5V +2.5V Photodiode Photodiode OPA343 OPA343 –2.5V C1 1MΩ 1MΩ C1 +5V +2.5V R2 R2 NOTE: (1) Optional pull-down resistor to allow below ground output swing. OPA335 C2 OPA335 C2 40kΩ(1) –2.5V –5V a. Split Supply. b. Single Supply.
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R2 R1 R1 R2 +5V VREF G=1+ +5V 1/2 OPA2335 R R R R 1/2 OPA2335 R2 R1 VOUT R3(1) 40kΩ –5V NOTE: (1) Optional pull-down resistor to allow accurate swing to 0V. FIGURE 6. Dual Op Amp IA Bridge Amplifier. 11.5kΩ +5V V 5V FS = 0.63V Load 50mV Shunt OPA335 R3(1) 40kΩ RS ADS1100 I2C 1kΩ G = 12.5 –5V (PGA Gain = 8) 5V FS NOTE: (1) Pull-down resistor to allow accurate swing to 0V. FIGURE 7. Low-Side Current Measurement. 10 OPA334, OPA2334, OPA335, OPA2335 www.ti.
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R1 4.12kΩ C1 56pF +5V C2 0.1µF R3 100Ω Photodiode ≈ 2pF VOUT OPA353 R2(1) 2kΩ C3 1nF ≈ 1MHz Bandwidth VOS ≈ 10µV –5V C4 10nF Photodiode Bias +5V R7 1kΩ C6 0.1µF C7 1µF R4 100kΩ R6 49.9kΩ OPA335 R5(1) 40kΩ C5 10nF –5V NOTE: (1) Pull-down resistors to allow accurate swing to 0V. FIGURE 8. High Dynamic Range Transimpedance Amplifier. OPA334, OPA2334, OPA335, OPA2335 SBOS245D www.ti.
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PACKAGE DRAWINGS DBV (R-PDSO-G6) PLASTIC SMALL-OUTLINE 0,95 6X 6 0,50 0,25 0,20 M 4 1,70 1,50 1 0,15 NOM 3,00 2,60 3 Gage Plane 3,00 2,80 0,25 0 –8 0,55 0,35 Seating Plane 1,45 0,95 0,05 MIN 0,10 4073253-5/G 01/02 NOTES: A. B. C. D. 12 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Leads 1, 2, 3 may be wider than leads 4, 5, 6 for package orientation.
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PACKAGE DRAWINGS (Cont.) DGS (S-PDSO-G10) PLASTIC SMALL-OUTLINE PACKAGE 0,27 0,17 0,50 10 0,08 M 6 0,15 NOM 3,05 2,95 4,98 4,78 Gage Plane 0,25 1 0°– 6° 5 3,05 2,95 0,69 0,41 Seating Plane 1,07 MAX 0,15 0,05 0,10 4073272/B 08/01 NOTES: A. B. C. A. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-187 OPA334, OPA2334, OPA335, OPA2335 SBOS245D www.ti.
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PACKAGE DRAWINGS (Cont.) DBV (R-PDSO-G5) PLASTIC SMALL-OUTLINE 0,50 0,30 0,95 5 0,20 M 4 1,70 1,50 1 0,15 NOM 3,00 2,60 3 Gage Plane 3,00 2,80 0,25 0° – 8° 0,55 0,35 Seating Plane 1,45 0,95 0,05 MIN 0,10 4073253-4/G 01/02 NOTES: A. B. C. D. 14 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-178 OPA334, OPA2334, OPA335, OPA2335 www.ti.
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PACKAGE DRAWINGS (Cont.) D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 8 PINS SHOWN 0.020 (0,51) 0.014 (0,35) 0.050 (1,27) 8 0.010 (0,25) 5 0.008 (0,20) NOM 0.244 (6,20) 0.228 (5,80) 0.157 (4,00) 0.150 (3,81) Gage Plane 1 4 0.010 (0,25) 0°– 8° A 0.044 (1,12) 0.016 (0,40) Seating Plane 0.010 (0,25) 0.004 (0,10) 0.069 (1,75) MAX PINS ** 0.004 (0,10) 8 14 16 A MAX 0.197 (5,00) 0.344 (8,75) 0.394 (10,00) A MIN 0.189 (4,80) 0.337 (8,55) 0.386 (9,80) DIM 4040047/E 09/01 NOTES: A. B.
PAGE 16
PACKAGE DRAWINGS (Cont.) DGK (R-PDSO-G8) PLASTIC SMALL-OUTLINE PACKAGE 0,38 0,25 0,65 8 0,08 M 5 0,15 NOM 3,05 2,95 4,98 4,78 Gage Plane 0,25 1 0°– 6° 4 3,05 2,95 0,69 0,41 Seating Plane 1,07 MAX 0,15 0,05 0,10 4073329/C 08/01 NOTES: A. B. C. D. 16 All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC MO-187 OPA334, OPA2334, OPA335, OPA2335 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 11-Apr-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
PAGE 20
PACKAGE MATERIALS INFORMATION www.ti.com 28-Aug-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA2334AIDGSR VSSOP DGS 10 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 OPA2334AIDGST VSSOP DGS 10 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 OPA2335AIDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 28-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2334AIDGSR VSSOP DGS 10 2500 367.0 367.0 35.0 OPA2334AIDGST VSSOP DGS 10 250 210.0 185.0 35.0 OPA2335AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.0 OPA2335AIDGKT VSSOP DGK 8 250 366.0 364.0 50.0 OPA2335AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA334AIDBVR SOT-23 DBV 6 3000 180.0 180.0 18.
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