1 Features

? AEC-Q100 qualified for automotive applications:

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

? Functional Safety-Capable

– Documentation available to aid functional safety

system design

? 6 simultaneously sampling differential inputs

? Programmable data rate up to 32 kSPS

? Programmable gain up to 128

? Noise performance:

– 102-dB dynamic range at gain = 1, 4 kSPS

– 80-dB dynamic range at gain = 64, 4 kSPS

? Total harmonic distortion: –100 dB

? High-impedance inputs for direct sensor

connection:

– 330-kΩ input impedance for gains of

1, 2, and 4

– ≥1-MΩ input impedance for gains of

8, 16, 32, 64, and 128

? Programmable channel-to-channel phase delay

calibration:

– Resolution = 244 ns, fCLKIN = 8.192 MHz

? Fast start-up: First data within 0.5 ms of supply

ramp

? Integrated negative charge pump allows input

signals below ground

? Crosstalk between channels: –120 dB

? Low-drift internal voltage reference

? Cyclic redundancy check (CRC) on

communications and register map

? Analog and digital supplies: 2.7 V to 3.6 V

? Low-power consumption: 4.9 mW at 3-V AVDD

and DVDD

? Package: 32-pin TQFP

2 Applications

? Automotive battery management systems (BMS):

– Current-shunt measurements

– Voltage measurements using external resistor

dividers

– Temperature measurements using thermistors

or analog output temperature sensors

? EV charging stations:

– DC e-metering

– AC e-metering

? Energy storage systems (ESS)

3 Description

The ADS131M06-Q1 is a six-channel, simultaneously

sampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital

converter (ADC) that offers wide dynamic range

and low power, making the device designed for

automotive battery management systems (BMS).

The ADC inputs can be directly interfaced to

shunt resistors for bidirectional battery-current

measurements, to resistor-divider networks for highvoltage

measurements, or to temperature sensors

(such as thermistors or analog output temperature

sensors).

The individual ADC channels can be independently

configured depending on the sensor input. A lownoise,

programmable gain amplifier (PGA) provides

gains ranging from 1 to 128 to amplify low-level

signals. Additionally, this device integrates channelto-

channel phase calibration and offset and gain

calibration registers to help remove signal-chain

errors.

A low-drift, 1.2-V reference is integrated into the

device reducing printed circuit board (PCB) area.

Optional cyclic redundancy checks (CRCs) on the

data input, data output, and register map maintain

communication integrity.

The complete analog front-end (AFE) is offered in

a 32-pin TQFP package and is specified over the

automotive temperature range of –40°C to +125°C.

ADS131M06屬于集成電路（IC） > 模數(shù)轉(zhuǎn)換器（ADC）。美國德州儀器公司制造生產(chǎn)的ADS131M06模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對(duì)模擬信號(hào)進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號(hào)。一般來說，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。