SBOS701C
Decemeber 2015 – October 2019
OPA191
,
OPA2191
,
OPA4191
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
OPA191 in a High-Voltage, Multiplexed, Data-Acquisition System
4
Revision History
5
Pin Configuration and Functions
Pin Functions: OPA191
Pin Functions: OPA2191 and OPA4191
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information: OPA191
6.5
Thermal Information: OPA2191
6.6
Thermal Information: OPA4191
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
Parameter Measurement Information
7.1
Input Offset Voltage Drift
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Protection Circuitry
8.3.2
EMI Rejection
8.3.3
Phase Reversal Protection
8.3.4
Thermal Protection
8.3.5
Capacitive Load and Stability
8.3.6
Common-Mode Voltage Range
8.3.7
Electrical Overstress
8.3.8
Overload Recovery
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Low-side Current Measurement
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curves
9.2.2
16-Bit Precision Multiplexed Data-Acquisition System
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.3
Slew Rate Limit for Input Protection
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
Development Support
12.1.1.1
TINA-TI (Free Software Download)
12.1.1.2
TI Precision Designs
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Related Links
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
D|8
MSOI002K
DGK|8
MPDS028D
DBV|5
MPDS018O
Thermal pad, mechanical data (Package|Pins)
D|8
QFND304D
DGK|8
QFND519
Orderable Information
sbos701c_oa
sbos701c_pm
1
Features
Low offset voltage: ±5 µV
Low offset voltage drift: ±0.1 µV/°C
Low noise: 15 nV/√
Hz
at 1 kHz
High common-mode rejection: 140 dB
Low bias current: ±5 pA
Rail-to-rail input and output
Wide bandwidth: 2.5-MHz GBW
High slew rate: 5 V/µs
Low quiescent current: 140 µA per amplifier
Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
EMI/RFI filtered inputs
Differential input voltage range to supply rail
High capacitive load drive capability: 1 nF
Industry standard packages:
Single in SOIC-8, SOT-5, and VSSOP-8
Dual in SOIC-8 and VSSOP-8
Quad in SOIC-14, TSSOP-14, and WQFN-16