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EMI

Filters

and

Input

MUX

Control

and

SPI Interface

Voltage

Reference

Oscillator

Fault

Detection

Test

Device

Current

Sensing

Line A

Voltage

Sensing

Channel 1

Channel 2

Channel 3

PGA

û

ADC

PGA

û

ADC

PGA

û

ADC

Current

Sensing

Voltage

Sensing

Current

Sensing

Voltage

Sensing

Current

Sensing

Voltage

Sensing

PGA

û

ADC

PGA

û

ADC

PGA

û

ADC

Channel 4

Channel 5

Channel 6

Channel 7

Channel 8

PGA

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ADC

PGA

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ADC

Line B

Line C

Line N

Amp

ADS130E08

www.ti.com.cn

ZHCS975A –JULY 2012–REVISED SEPTEMBER 2012

用用于于计计量量应应用用的的低低成成本本、、8 通通道道、、集集成成模模拟拟前前端端

查查询询样样品品: ADS130E08

特特性性

说说明明

• 8 个个差差分分电电流流和和电电压压输输入入

ADS130E08 是一款多通道、同步采样、16 位、三角

• 8 个个低低噪噪声声可可编编程程增增益益放放大大器器 (PGA) 与与

积分 (ΔΣ) 模数转换器 (ADC)，此转换器带有内置可编

8 个个高高分分辨辨率率模模数数转转换换器器 (ADC)

程增益放大器 (PGA)，内部基准，和一个外部振荡器

• 超超过过 1.0 类类性性能能

接口。

• 共共模模抑抑制制比比 (CMRR)：： –110 dB

• 串串扰扰：：-105dB

此器件组装有工业仪表计量应用中的常用特性。凭借

• 总总谐谐波波失失真真 (THD)：：-108dB

其高度的集成性及出色的性能，ADS130E08 系列产品

• 功功率率：：每每通通道道 750µW

能够在大幅缩小尺寸、降低功耗与整体成本的同时，创

• 数数据据速速率率：：8 每每秒秒千千次次采采样样 (kSPS)

建可扩展工业电源系统。

• 可可编编程程增增益益（（1，，2，，和和 8））

ADS130E08 每通道上提供一个灵活的输入多路复用

• 直直流流耦耦合合：：

器，此多路复用器可独立连接至内部生成的信号来实现

– 双双电电源源：：+3V 至至 +5V 或或者者

测试、温度、和故障检测。 ADS130E08 运行数据速

+1.8V 至至 +3.6V

率为 8kSPS。故障检测可在器件内部执行，此器件使

– 双双极极电电源源：：±2.5V

用由数模转换器 (DAC) 控制触发电平的集成比较器。

• 内内置置测测试试信信号号

• 故故障障检检测测比比较较器器

可在菊花链配置的高通道数量系统中串联多个器件。

• 四四个个通通用用输输入入输输出出 (GPIO) 引引脚脚

这些完整的模拟前端 (AFE) 解决方案采用 TQFP-64 封

• 内内部部和和外外部部基基准准

装，额定工业温度范围为 -40°C 至 +105°C。

• 灵灵活活的的省省电电模模式式：：STBY（（待待机机））模模式式

• 串串行行外外设设接接口口 (SPI)™ 数数据据接接口口

• 封封装装：：薄薄型型四四方方扁扁平平封封装装 (TQFQ)-64 (PAG)

• 工工作作温温度度范范围围：：

-40°C 至至 +105°C

应应用用范范围围

• 工工业业电电源源应应用用：：

– 三三相相仪仪表表计计量量

– 工工业业应应用用

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2串行外设接口 (SPI) is a trademark of Motorola.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not English Data Sheet: SBAS574

necessarily include testing of all parameters.

ADS130E08

ZHCS975A –JULY 2012–REVISED SEPTEMBER 2012

www.ti.com.cn

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more

susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.

FAMILY AND ORDERING INFORMATION

(1)

OPERATING

NUMBER OF MAXIMUM SAMPLE TEMPERATURE

PRODUCT PACKAGE OPTION CHANNELS ACCURACY RATE (kSPS) RANGE

ADS130E08 TQFP-64 8 Class 1.0 8 –40°C to +105°C

ADS131E04 TQFP-64 4 Class 0.1 64 –40°C to +105°C

ADS131E06 TQFP-64 6 Class 0.1 64 –40°C to +105°C

ADS131E08 TQFP-64 8 Class 0.1 64 –40°C to +105°C

(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or visit the

device product folder at www.ti.com.

ABSOLUTE MAXIMUM RATINGS

(1)

Over operating free-air temperature range, unless otherwise noted.

VALUE UNIT

AVDD to AVSS –0.3 to +5.5 V

DVDD to DGND –0.3 to +3.9 V

AVSS to DGND –2.75 to +0.2 V

REF

input to AVSS AVSS – 0.3 to AVDD + 0.3 V

Analog input to AVSS AVSS – 0.3 to AVDD + 0.3 V

Digital input voltage to DVDD –0.3 to DVDD + 0.3 V

Digital output voltage to DGND –0.3 to DVDD + 0.3 V

Momentary 100 mA

Input current

Continuous 10 mA

Operating, T

–40 to +105 °C

Temperature Storage, T

stg

–60 to +150 °C

Maximum junction, T

+150 °C

Human body model (HBM)

±1000 V

JEDEC standard 22, test method A114-C.01, all pins

Electrostatic discharge

(ESD) ratings

Charged device model (CDM)

±500 V

JEDEC standard 22, test method C101, all pins

(1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may

degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond

those specified is not implied.

ADS130E08

www.ti.com.cn

ZHCS975A –JULY 2012–REVISED SEPTEMBER 2012

ELECTRICAL CHARACTERISTICS

Minimum and maximum specifications apply from –40°C to +105°C. Typical specifications are at +25°C. All specifications are

at DVDD = 1.8 V, AVDD = 3 V, AVSS = 0 V, V

REF

= 2.4 V, external f

CLK

= 2.048 MHz, data rate = 8 kSPS, and gain = 1,

unless otherwise noted.

ADS130E08

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

ANALOG INPUTS

Full-scale differential input voltage

±V

REF

/ gain V

(AINP – AINN)

See the Input Common-Mode Range

Input common-mode range subsection of the PGA Settings and

Input Range section

Input capacitance 20 pF

Input bias current 2 nA

DC input impedance 500 MΩ

PGA PERFORMANCE

Gain settings 1, 2, 8

BW Bandwidth See Table 1

ADC PERFORMANCE

Resolution No missing codes 16 Bits

DR Data rate f

CLK

= 2.048 MHz 8 kSPS

CHANNEL PERFORMANCE (DC Performance)

G = 1 86 89 dB

Dynamic range

G = 2 and 8 89 dB

INL Integral nonlinearity Full-scale with gain = 1, best fit 3 ppm

Offset error ±350 μV

Offset error drift 0.6 μV/°C

Gain error Excluding voltage reference error ±0.1 % of FS

Gain drift Excluding voltage reference drift 3 ppm/°C

Gain match between channels 0.2 % of FS

CHANNEL PERFORMANCE (AC Performance)

CMRR Common-mode rejection ratio f

= 50 Hz and 60 Hz

(1)

–110 dB

PSRR Power-supply rejection ratio f

= 50 Hz and 60 Hz 80 dB

Crosstalk f

= 50 Hz and 60 Hz –105 dB

1:3000 dynamic range with a 1-second

Accuracy 0.5 %

measurement (V

RMS

/ I

RMS

)

SNR Signal-to-noise ratio f

= 10-Hz input, –0.5 dBFs 89 dB

THD Total harmonic distortion 10 Hz, –0.5 dBFs –108 dB

OPEN-CIRCUIT DETECT AND ALARM

Comparator threshold accuracy ±30 mV

EXTERNAL REFERENCE

AVDD = 3 V, V

REF

= (VREFP – VREFN) 2.5 V

I(ref)

Reference input voltage

AVDD = 5 V, V

REF

= (VREFP – VREFN) 4 V

VREFN Negative input AVSS V

VREFP Positive input AVSS + 2.5 V

Input impedance 10 kΩ

(1) CMRR is measured with a common-mode signal of (AVSS + 0.3 V) to (AVDD – 0.3 V). The values indicated are the minimum of the

eight channels.

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