Shenzhen Meiyuxin Technology Co., Ltd. [Distribution of ADC chips] ADS131M04QPWRQ1 four-channel, 24-bit, 64kSPS analog-to-digital converter quality assurance brand new original! ! !

Product Description:

The ADS131M04QPWRQ1 is a four-channel, simultaneous sampling, 24-bit, delta-sigma analog-to-digital converter (ADC) with wide dynamic range and low power consumption, making it ideal for use in automotive battery management systems (BMS). The ADC input can be connected directly to a shunt resistor for bidirectional battery current measurement, to a resistive divider network for high voltage measurement, or to a temperature sensor such as a thermistor or an analog output temperature sensor.

The ADS131M04QPWRQ1 can independently configure each ADC channel based on sensor input. A low-noise, programmable gain amplifier (PGA) provides gains from 1 to 128 to amplify low-level signals. In addition, the device integrates channel-to-channel phase calibration, offset and gain calibration registers to help eliminate signal chain errors.

ADS131M04QPWRQ1 This device integrates a low-drift, 1.2-V reference, reducing printed circuit board (PCB) area. An optional cyclic redundancy check (CRC) in data-in, data-out, and register maps ensures communication integrity.

Product parameters:

– AEC-Q100 Qualified for Automotive Applications:

– Temperature class 1: –40°C to +125°C, TA

• Available in functional safety

– Documentation to aid in functional safety system design

• 4 simultaneous sampling differential inputs

• Programmable data rates up to 64kSPS

• Programmable gain up to 128

• Noise performance:

– 102dB dynamic range at 1.4 kSPS gain

– 80dB dynamic range at 64.4 kSPS gain

• Total Harmonic Distortion: -100dB

• High impedance input for direct sensor connection:

– 330kΩ Input Impedance at Gains of 1, 2, and 4

– Input impedance ≥ 1MΩ at gains of 8, 16, 32, 64, and 128

• Programmable Channel-to-Channel Phase Delay Calibration:

– Resolution = 244 ns, fCLKIN = 8.192 MHz

• Quick Start:

– First data within 0.5 ms of voltage ramp

• Integrated Negative Charge Pump Allows Input Signals Below Ground

• Crosstalk between channels: -120 dB

• Low-Drift Internal Voltage Reference

• CRC for communication and register map

• Analog and Digital Power: 2.7V to 3.6V

• Low Power Consumption: 3.3 mW at 3-V AVDD and DVDD

• Package: 20-pin TSSOP

Application:

• Automotive battery management systems (BMS):

– Current shunt measurement

– Voltage measurement using external resistor divider

– Temperature measurement using a thermistor or an analog output temperature sensor

• Electric vehicle charging stations:

– DC electronic metering

– AC electronic metering

• Energy Storage System (ESS)