Texas Instruments LMP860x/LMP860x-Q1 60V Current Sensing Amplifiers
Texas Instruments LMP860x/LMP860x-Q1 60V Fixed Gain Current Sensing Precision Amplifiers amplify and filter small differential signals in the presence of high common-mode voltages. The input common-mode voltage range of these devices is -22V to +60V when operating from a single 5V supply. With a 3.3V supply, the input common-mode voltage range is from -4V to +27V. Texas Instruments LMP860x/LMP860x-Q1 fixed gain current sensing precision amplifiers are members of the LMP® family and are ideal for use in unidirectional and bidirectional current sensing applications. The LMP8602/LMP8602-Q1 has a precise gain of 50x, while the LMP8603/LMP8603-Q1 has a precise gain of 100x. These precise gain figures can drive an ADC to its full-scale value in most targeted applications. The LMP8602-Q1 and LMP8603-Q1 incorporate enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.Features
- Gain = 20x for LMP8601 and LMP8601-Q1
- Gain = 50x for LMP8602 and LMP8602-Q1
- Gain = 100x for LMP8603 and LMP8603-Q1
- 10µV/°C maximum TCVOS
- 90dB minimum CMRR
- 1mV maximum input offset voltage
- CMVR at VS = 3.3V: –4V to 27V
- CMVR at VS = 5V: –22V to 60V
- Single-supply bidirectional operation
- All minimum and maximum limits are 100% tested
- Q1 devices qualified for automotive applications
- Q1 devices ACE-Q100 qualified with the following results
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Device temperature grade 0: –40°C to 150°C (LMP8601EDRQ1 only)
- Device HBM ESD classification level 2 (3A on inputs)
- Device CDM ESD classification level C6
- Device MM ESD classification level M2
Applications
- High-side and low-side driver configuration current sensing
- Bidirectional current measurement
- Current loop to voltage conversion
- Automotive fuel injection control
- Transmission control
- Power steering
- Battery management systems
Functional Block Diagram
Paskelbta: 2012-03-05
| Atnaujinta: 2022-03-11
