LM432 Op-Amp Datasheet

LM432 Datasheet, PDF, Equivalent


Part Number

LM432

Description

Dual Op-Amp

Manufacture

etcTI

Total Page 8 Pages
Datasheet
Download LM432 Datasheet


LM432
LM432
www.ti.com
SNOS538C – MAY 2004 – REVISED SEPTEMBER 2004
LM432 Dual Op Amp with On-Chip Fixed 2.5V Reference
Check for Samples: LM432
FEATURES
1
2 Dual Op Amp Circuitry
• (Typical for VS= 5V)
• Input offset voltage 0.6mV
• Input offset current 1nA
• Input bias current 3nA
• Common-mode input voltage range 0V to
VS1V
• Power supply current 150µA
• Reference Circuitry
• Reference voltage 2.5V
• Reference voltage deviation (40°C to 85°C)
4mV
• Sink Current Capability 0.2mA to 10mA
APPLICATIONS
• Low cost charging circuitry
• Power supplies and adapters
DESCRIPTION
The LM432 integrates two operational amplifiers and one 2.5V reference. The reference is based on the LMV431
adjustable shunt regulator with the output voltage adjusted to a fixed 2.5V. The Op Amps are similar to the
LM358 with a common-mode input range that includes ground. Integrating the reference and Op Amps creates a
solution for low cost charging applications.
Connection Diagram
Application Circuit
Figure 1. 8-Pin SOIC (Top View)
Figure 2. Optocoupler Driver Circuit for Power Supply Isolation
1
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.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated

LM432
LM432
SNOS538C – MAY 2004 – REVISED SEPTEMBER 2004
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings (1) (2)
Suppy Voltage (VS)
Storage Temperature
Junction Temperature (TJ)
ESD Human Body Model
Input Voltage Range
20V
65°C to 150°C
150°C
2kV
0.3V to 20V
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
(2) All voltages are measured with respect to GND = 0VDC, unless otherwise specified.
Operating Ratings(1),(2)
Temperature Range
Supply Voltage (3)
Thermal Resistance(θJA)
40°C to 85°C
2.5V to 16V
162°C/W
(1) Operating Rating indicate conditions for which the device is functional. These rating do not guarantee specific performance limits. For
guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test
conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
(2) All voltages are measured with respect to GND = 0VDC, unless otherwise specified.
(3) Minimum value of operating voltage is for Amplifier B only.
2 Submit Documentation Feedback
Product Folder Links: LM432
Copyright © 2004, Texas Instruments Incorporated


Features LM432 www.ti.com SNOS538C – MAY 2004 – REVISED SEPTEMBER 2004 LM432 Dual Op Amp with On-Chip Fixed 2.5V Referen ce Check for Samples: LM432 FEATURES 1 •2 Dual Op Amp Circuitry • (Typica l for VS= 5V) • Input offset voltage 0.6mV • Input offset current 1nA • Input bias current 3nA • Common-mode input voltage range 0V to VS−1V • P ower supply current 150µA • Referenc e Circuitry • Reference voltage 2.5V • Reference voltage deviation (−40 °C to 85°C) 4mV • Sink Current Capa bility 0.2mA to 10mA APPLICATIONS • L ow cost charging circuitry • Power su pplies and adapters DESCRIPTION The LM 432 integrates two operational amplifie rs and one 2.5V reference. The referenc e is based on the LMV431 adjustable shu nt regulator with the output voltage ad justed to a fixed 2.5V. The Op Amps are similar to the LM358 with a common-mod e input range that includes ground. Int egrating the reference and Op Amps crea tes a solution for low cost charging applications. Connection Diagram Application Circuit Figure .
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