Datasheet > ADS131M08

ADS131M08

更新时间： 2024-02-29 09:48:58

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德州仪器 - TI		/
页数	文件大小	规格书
116页	3822K
描述
ADS131M08 8-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC

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ADS131M08 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	TFQFP,
Reach Compliance Code：	compliant	Factory Lead Time：	6 weeks
风险等级：	1.81	Samacsys Description：	Analog to Digital Converters - ADC 24-bit 32-kSPS 8-channel simultaneous-sampling delta-sigma ADC 32-TQFP -40 to 125
最大模拟输入电压：	1.2 V	最小模拟输入电压：	-1.2 V
转换器类型：	ADC, DELTA-SIGMA	JESD-30 代码：	S-PQFP-G32
JESD-609代码：	e4	长度：	5 mm
湿度敏感等级：	2	模拟输入通道数量：	8
位数：	24	功能数量：	1
端子数量：	32	最高工作温度：	125 °C
最低工作温度：	-40 °C	输出位码：	BINARY
输出格式：	SERIAL	封装主体材料：	PLASTIC/EPOXY
封装代码：	TFQFP	封装形状：	SQUARE
封装形式：	FLATPACK, THIN PROFILE, FINE PITCH	采样速率：	0.032 MHz
座面最大高度：	1.2 mm	最小供电电压：	2.7 V
标称供电电压：	3 V	表面贴装：	YES
温度等级：	AUTOMOTIVE	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	宽度：	5 mm

ADS131M08 数据手册

ADS131M08

_{SBAS950B – OCTOBER 2019 – REVISED F}A_EBD_RS_U1_A3_R1_YM₂₀0₂8₁

SBAS950B – OCTOBER 2019 – REVISED FEBRUARY 2021

www.ti.com

ADS131M08 8-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC

1 Features

3 Description

•

8 simultaneously sampling differential inputs

Programmable data rate up to 32 kSPS

Programmable gain up to 128

The ADS131M08 is a eight-channel, simultaneously-

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

converter (ADC) that offers wide dynamic range, low

power, and energy-measurement-specific features,

making the device an excellent fit for energy metering,

power metrology, and circuit breaker applications. The

ADC inputs can be directly interfaced to a resistor-

divider network or a power transformer to measure

voltage or to a current transformer or a Rogowski coil

to measure current.

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:

•

– Input impedance 330-kΩ for gains of

1, 2, and 4

– Input impedance ≥ 1-MΩ for gains of

8, 16, 32, 64, and 128

Programmable channel-to-channel phase delay

calibration:

– 244-ns resolution, 8.192-MHz f_CLKIN

Current-detect mode allows for extremely low

power tamper detection

Fast startup: first data within 0.5 ms of supply

ramp

Integrated negative charge pump allows input

signals below ground

The individual ADC channels can be independently

configured depending on the sensor input. A low-

noise, programmable gain amplifier (PGA) provides

gains ranging from 1 to 128 to amplify low-level

signals. Additionally, this device integrates channel-to-

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.

•

Crosstalk between channels: –120 dB

Low-drift internal voltage reference

Cyclic redundancy check (CRC) on

communications and register map

2.7-V to 3.6-V analog and digital supplies

Low power consumption: 6.0 mW at 3-V AVDD

and DVDD

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

32-pin TQFP package or a leadless 32-pin WQFN

package and is specified over the industrial

temperature range of –40°C to +125°C.

•

Device Information ⁽¹⁾

PART NUMBER

PACKAGE

TQFP (32)

WQFN (32)

BODY SIZE (NOM)

5.00 mm × 5.00 mm

4.00 mm × 4.00 mm

•

Packages: 32-pin TQFP or 32-pin WQFN

Operating temperature range: –40°C to +125°C

ADS131M08

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

2 Applications

•

Electricity meters: commercial and residential

Circuit breakers

Protection relays

Power quality meters

Battery test equipment

AVDD

REFIN

DVDD

1.2-V

Reference

AIN0P

AIN0N

Phase Shift

Digital Filter

Gain

& Offset

Calibration

Channel

DS ADC

SYNC / RESET

Channel

SCLK

AINnP

AINnN

Phase Shift

Gain

Calibration

Gain

Calibration

Ga n & Offset

Offset

& Offset

Control &

Serial Interface

Channels 1-6

DS ADC

DIN

Digital Filter

Phase Shift

Calibration

Gain Offset

& Offset

Battery management systems

Digital Filter

Phase Shift

Digital Filter

Phase Shift

DS ADC

Calibration

DOUT

DRDY

Digital Filter

DS ADC

Channels 1-6

AIN7P

AIN7N

Phase Shift

Digital Filter

Gain & Offset

Calibration

Channel

DS ADC

XTAL1

XTAL2

/ CLKIN

Clock

Generation

AGND

DGND

Simplified Block Diagram

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product Folder Links: ADS131M08

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ADS131M08IPBS	TI	ADS131M08 8-Channel, Simultaneously-Sampling, 24-Bit, Delta-Sigma ADC	获取价格
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