Datasheet OPA196, OPA2196, OPA4196 - OPAx196 (Texas Instruments)

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OPA196 , OPA2196 , OPA4196
SBOS869 – JULY 2017
OPAx196 36-V, Low-Power, Low Offset Voltage, Rail-to-Rail Operational Amplifier 1 Features 3 Description
• Low Offset Voltage: ±100 µV (maximum) The OPAx196 family (OPA196, OPA2196, and 1 OPA4196) is a new generation of 36-V, rail-to-rail e- • Low Offset Voltage Drift: ±0.5 µV/°C (typical) trim™ operational amplifiers (op amps). • Low Bias Current: ±5 pA (typical) These devices offer very low offset voltage (±25 μV, • High Common-Mode Rejection: 140 dB typical), drift (±0.5 μV/°C, typical), and low bias • Low Noise: 15 nV/√Hz at 1 kHz current (±5 pA, typical) combined with very low • Rail-to-Rail Input and Output quiescent current (140 μA/channel, typical) across the entire output range. • Differential Input Voltage Range to Supply Rail • Wide Bandwidth: 2.5-MHz GBW Unique features, such as differential input-voltage range to the supply rail, high output current (±65 mA), • Low Quiescent Current: 140 µA per Amplifier and high capacitive load drive of up to 1 nF make the (typical) OPAx196 a robust, high-performance operational • Wide Supply: ±2.25 V to ±18 V, 4.5 V to 36 V amplifier for high-voltage industrial applications. • EMI/RFI Filtered Inputs The OPAx196 family of op amps is available in • High Capacitive Load Drive Capability: 1 nF standard packages and is specified from –40°C to • Industry Standard Packages: +125°C. – Single in SOIC-8, SOT-5, and VSSOP-8
Device Information(1)
– Dual in SOIC-8 and VSSOP-8
PART NUMBER PACKAGE BODY SIZE (NOM)
– Quad in SOIC-14, TSSOP-14, and QFN-16 SOIC (8) 4.90 mm × 3.90 mm OPA196 SOT (5) 2.90 mm × 1.60 mm
2 Applications
VSSOP (8) 3.00 mm × 3.00 mm • Multiplexed Data-Acquisition Systems SOIC (8) 4.90 mm × 3.90 mm OPA2196 • Test and Measurement Equipment VSSOP (8) 3.00 mm × 3.00 mm • High-Resolution ADC Driver Amplifiers SOIC (14) 8.65 mm x 3.90 mm OPA4196 • SAR ADC Reference Buffers TSSOP (14) 5.00 mm x 4.40 mm • Analog Input and Output Modules (1) For all available packages, see the package option addendum • High-Side and Low-Side Current Sensing at the end of the data sheet. • High-Precision Comparator • Medical Instrumentation
OPA196 in a High-Voltage, Multiplexed, Data-Acquisition System
Analog Inputs RC RC
REF3140
Bridge Filter Filter Sensor
OPA625 OPA196
Gain Gain + 4:2 HV Thermocouple MUX REF +
OPA196
VINP
OPA196
Gain + Antialiasing
ADS8864
Filter Current Sensing VINM in a G High-Voltage Multiplexed High-Voltage Level Reference Optical Sensor Input Translation VCM Driver Copyright © 2017, Texas Instruments Incorporated 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information: OPA196 6.5 Thermal Information: OPA2196 6.6 Thermal Information: OPA4196 6.7 Electrical Characteristics: VS = ±4 V to ±18 V (VS = 8 V to 36 V) 6.8 Electrical Characteristics: VS = ±2.25 V to ±4 V (VS = 4.5 V to 8 V) 6.9 Typical Characteristics 7 Detailed Description 7.1 Overview 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Input Protection Circuitry 7.3.2 EMI Rejection 7.3.3 Phase Reversal Protection 7.3.4 Thermal Protection 7.3.5 Capacitive Load and Stability 7.3.6 Common-Mode Voltage Range 7.3.7 Electrical Overstress 7.3.8 Overload Recovery 7.4 Device Functional Modes 8 Application and Implementation 8.1 Application Information 8.2 Typical Applications 8.2.1 Low-side Current Measurement 8.2.1.1 Design Requirements 8.2.1.2 Detailed Design Procedure 8.2.1.3 Application Curves 8.2.2 16-Bit Precision Multiplexed Data-Acquisition System 8.2.2.1 Design Requirements 8.2.2.2 Detailed Design Procedure 8.2.3 Slew Rate Limit for Input Protection 9 Power-Supply Recommendations 10 Layout 10.1 Layout Guidelines 10.2 Layout Example 11 Device and Documentation Support 11.1 Device Support 11.1.1 Development Support 11.1.1.1 TINA-TI (Free Software Download) 11.1.1.2 TI Precision Designs 11.2 Documentation Support 11.2.1 Related Documentation 11.3 Related Links 11.4 Receiving Notification of Documentation Updates 11.5 Community Resources 11.6 Trademarks 11.7 Electrostatic Discharge Caution 11.8 Glossary 12 Mechanical, Packaging, and Orderable Information