TPA1285
TPA1285 is 2ch Current Sense Amplifier manufactured by 3PEAK.
Features
Description
- VOLTAGE OFFSET: ±100u V (MAX)
- WIDE MON MODE VOLTAGE: 3.0V to +76V
- SUPPLY VOLTAGE: 3.0V to +5.5V
- ACCURACY and ZERO-DRIFT PERFORMANCE
- ±0.5% Gain Error (Max over temperature)
- 0.4μV/°C Offset Drift (Max, -40°C ~125°C)
- 10ppm/°C Gain Drift (Max)
- THREE GAIN OPTIONS for VOLTAGE OUTPUT
- TPA1285T: 20V/V
- TPA1285F: 50V/V
- TPA1285H: 100V/V
- Rail-to-Rail Output
- Industrial
- 40°C to 125°C Operation Range
- ESD Rating: Robust 2.5k V
- HBM, 1.5k V
- CDM
Applications
The TPA1285, high precision, high mon voltage, 2 channel high-side current sense amplifier has very high precision accuracy specifications of Vos less than 100μV (max) and gain error less than 0.5% (max). Three fixed gains are available: 20V/V, 50V/V, and 100V/V. The low offset of the zerodrift architecture enables current sensing with maximum drops across the shunt as low as 5m V full-scale.
The TPA1285 features an input mon-mode voltage range from 3.0V to 76V with 80k Hz of small-signal bandwidth, which makes it ideal for small signal conditioning interfacing with a SAR ADC.
The TPA1285 offers breakthrough performance throughout the
- 40°C to +125°C temperature range. It features a zero-drift core, which leads to a maxim offset drift of 0.4μV/°C throughout the operating temperature range and the mon-mode voltage range. The TPA1285 is offered 8-pin MSOP package
- CURRENT SENSING (High- Side)
- BATTERY CHARGERS
- POWER MANAGEMENT
- AUTOMOTIVE
- SERVER BACKPLANES
- BASE STATIONS & TELE EQUIPMENT
- INDUSTRIAL CONTROL AND AUTOMATION
Functional Block Diagram
ILOAD1
VSENSE1
IN1+
RG1
RSENSE1
IN1-
RG1
A1...