SBOS830I
September 2017 – October 2021
OPA189
,
OPA2189
,
OPA4189
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information: OPA189
7.5
Thermal Information: OPA2189
7.6
Thermal Information: OPA4189
7.7
Electrical Characteristics
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Operating Characteristics
8.3.2
Phase-Reversal Protection
8.3.3
Input Bias Current Clock Feedthrough
8.3.4
EMI Rejection
8.3.5
EMIRR +IN Test Configuration
8.3.6
Electrical Overstress
8.3.7
MUX-Friendly Inputs
8.3.8
Noise Performance
8.3.9
Basic Noise Calculations
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
25-kHz Low-Pass Filter
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curve
9.2.2
Discrete INA + Attenuation for ADC With 3.3-V Supply
9.2.3
Bridge Amplifier
9.2.4
Low-Side Current Monitor
9.2.5
Programmable Power Supply
9.2.6
RTD Amplifier With Linearization
9.3
System Examples
9.3.1
24-Bit, Delta-Sigma, Differential Load Cell or Strain Gauge Sensor Signal Conditioning
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™ Simulation Software (Free Download)
12.1.1.2
TI Precision Designs
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
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)
PW|14
MPDS360
D|14
MPDS177G
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos830i_oa
sbos830i_pm
1
Features
Ultra-high precision:
Zero-drift: 0.005 μV/°C (OPA189)
Ultra-low offset voltage: 3 μV maximum (OPA189)
Excellent dc precision:
CMRR: 168 dB
Open-loop gain: 170 dB
Low noise:
e
n
at 1 kHz: 5.2 nV/√
Hz
0.1-Hz to 10-Hz noise: 0.1 µV
PP
Excellent dynamic performance:
Gain bandwidth: 14 MHz
Slew rate: 20 V/µs
Fast settling: 10-V step, 0.01% in 1.1 µs
Robust design:
MUX-friendly inputs
RFI/EMI filtered inputs
Wide supply range: 4.5 V to 36 V
Quiescent current: 1.7 mA (maximum)
Rail-to-rail output
Input includes negative rail
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