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OPAx205 4-µV, 0.08-µV/°C, Low-Power, Super Beta, Bipolar, e-trim™ Op Amps
SBOS962F
April 2020 – March 2023
OPA205
,
OPA2205
,
OPA4205
PRODMIX
CONTENTS
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OPAx205 4-µV, 0.08-µV/°C, Low-Power, Super Beta, Bipolar, e-trim™ Op Amps
1
Features
2
Applications
3
Description
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: OPA205
6.5
Thermal Information: OPA2205
6.6
Thermal Information: OPA4205
6.7
Electrical Characteristics: VS = ±5 V
6.8
Electrical Characteristics: VS = ±15 V
6.9
Typical Characteristics
7
Parameter Measurement Information
7.1
Typical Specifications and Distributions
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Input Offset Trimming
8.3.2
Lower Input Bias With Super-Beta Inputs
8.3.3
Overload Power Limiter
8.3.4
EMI Rejection
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
High-Precision Signal-Chain Input Buffer
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curves
9.2.2
Discrete, Two-Op-Amp Instrumentation Amplifier
9.2.3
Second-Order Low-Pass Filter
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Development Support
10.1.1.1
PSpice® for TI
10.2
Documentation Support
10.2.1
Related Documentation
10.3
Receiving Notification of Documentation Updates
10.4
Support Resources
10.5
Trademarks
10.6
Electrostatic Discharge Caution
10.7
Glossary
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PW|14
MPDS360A
D|14
MPDS177H
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbos962f_oa
sbos962f_pm
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DATA SHEET
OPAx205 4-µV, 0.08-µV/°C, Low-Power, Super Beta, Bipolar, e-trim™ Op Amps
1
Features
e-trim™
operational amplifier performance
Low offset voltage: 25 µV (max),
15 µV (max, high grade)
Low offset voltage drift: ±0.5 µV/°C (max),
±0.2 µV/°C (max, high grade)
Super beta inputs
Input bias current: 500 pA (max)
Input current noise: 110 fA/√
Hz
Low noise
0.1 to 10-Hz: 0.2 µV
PP
Voltage noise: 7.2 nV/√
Hz
A
OL
, CMRR, and PSRR: > 126 dB (full temperature range)
Gain bandwidth product: 3.6 MHz
Low quiescent current: 240 µA (max)
Slew rate: 4 V/µs
Overload power limiter
Rail-to-rail output
EMI and RFI filtered inputs
Wide supply: 4.5 V to 36 V
Temperature range: –40°C to +125°C
Available in standard grade (OPAx205A) and
high grade (OPA2205, preview)
Available with ±40-V overvoltage protection in the
OPA206
and
OPA2206
2
Applications
Flow transmitter
String inverter
Data acquisition (DAQ)
Source measurement unit (SMU)
Lab and field instrumentation
Battery test
Analog input module
Pressure transmitter