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ADS7871IDB PDF预览

ADS7871IDB

更新时间: 2024-02-12 01:04:25
品牌 Logo 应用领域
德州仪器 - TI 转换器光电二极管PC
页数 文件大小 规格书
42页 426K
描述
14-BIT, 48-KSPS, DATA ACQUISITION SYSTEM WITH ANALOG-TO-DIGITAL CONVERTER, MUX, PGA, AND REFERENCE

ADS7871IDB 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SSOP
包装说明:SSOP-28针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:5.34Is Samacsys:N
最大模拟输入电压:5.7 V最小模拟输入电压:-0.2 V
转换器类型:ADC, SUCCESSIVE APPROXIMATIONJESD-30 代码:R-PDSO-G28
JESD-609代码:e4长度:10.2 mm
最大线性误差 (EL):0.0122%湿度敏感等级:2
模拟输入通道数量:8位数:14
功能数量:1端子数量:28
最高工作温度:85 °C最低工作温度:-40 °C
输出位码:BINARY, 2'S COMPLEMENT BINARY输出格式:SERIAL
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装等效代码:SSOP28,.3封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
采样速率:0.048 MHz座面最大高度:2 mm
子类别:Analog to Digital Converters最大压摆率:2 mA
最小供电电压:2.7 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5.3 mmBase Number Matches:1

ADS7871IDB 数据手册

 浏览型号ADS7871IDB的Datasheet PDF文件第1页浏览型号ADS7871IDB的Datasheet PDF文件第2页浏览型号ADS7871IDB的Datasheet PDF文件第4页浏览型号ADS7871IDB的Datasheet PDF文件第5页浏览型号ADS7871IDB的Datasheet PDF文件第6页浏览型号ADS7871IDB的Datasheet PDF文件第7页 
www.ti.com  
SLAS370C − APRIL 2002 − REVISED OCTOBER 2004  
ELECTRICAL CHARACTERISTICS  
(1)  
For the Total System , −40°C T 85°C, V  
otherwise noted)  
= 5 V, BUFIN = 2.5 V (using external reference), 2.5-MHz CCLK and 2.5-MHz SCLK (unless  
A
DD  
PARAMETER  
TEST CONDITIONS  
MIN  
TYP  
MAX  
UNIT  
Analog Input  
Input voltage (LNx inputs)  
Linear operation  
−0.2  
4
V
DD  
+ 0.2  
9.7  
V
(2)  
Input capacitance  
pF  
Common mode  
Differential  
6
7
(2)  
Input impedance  
MΩ  
(3)  
Channel-to-channel crosstalk  
Maximum leakage current  
Static Accuracy  
Resolution  
V = 2 V , 60 Hz  
PP  
100  
100  
dB  
pA  
I
14  
Bits  
Bits  
No missing codes  
Integral linearity  
G = 1 to 20 V/V  
G = 1 to 20 V/V  
G = 1 to 20 V/V  
G = 1 to 20 V/V  
G = 1 to 10 V/V  
G = 16 and 20 V/V  
G = 1 to 10 V/V  
G = 16 and 20 V/V  
13  
−4  
2
0.5  
1
4
4
LSB  
Differential linearity  
Offset error  
−2  
LSB  
−24  
24  
LSB  
−0.2  
−0.25  
−0.35  
−0.4  
0.2  
0.25  
0.35  
0.4  
%FSR  
%FSR  
%FSR  
%FSR  
dB  
Ratiometric configuration or  
(4)  
external reference  
Full-scale gain error  
Internal reference  
DC common-mode rejection ratio, RTI  
Power supply rejection ratio, RTI  
Dynamic Characteristics  
V = −0.2 V to 5.2 V, G = 20 V/V  
80  
88  
I
V
DD  
= 5 V 10%, G = 20 V/V  
dB  
Continuous mode  
Address mode  
One channel  
48  
48  
20  
Throughput rate  
ksample/s  
Different channels  
(5)  
External clock, CCLK  
0.1  
MHz  
MHz  
MHz  
ns  
Internal oscillator frequency  
Serial interface clock, SCLK  
Data setup time  
2.5  
20  
10  
10  
Data hold time  
ns  
Digital Inputs  
Low-level input voltage, V  
IL  
0.8  
V
V
V
V
V
3.6 V  
2
3
DD  
High-level input voltage, V  
IH  
> 3.6 V  
Logic levels  
DD  
Low-level input current, I  
IL  
1
1
µA  
High-level input current, I  
IH  
(1)  
(2)  
The specifications for the total system are overall analog input to digital output specifications. The specifications for internal functions indicate  
the performance of the individual functions in the ADS7871.  
The ADS7871 uses switched capacitor techniques for the programmable gain amplifier and A/D converter. A characteristic of such circuits is that  
the input capacitance at any selected LNx pin changes during the conversion cycle.  
(3)  
(4)  
One channel on with its inputs grounded. All other channels off with sinewave voltage applied to their inputs.  
Ratiometricconfiguration exists when the input source is configured such that changes in the reference cause corresponding changes in the input  
voltage. The same accuracy applies when a perfect external reference is used.  
The CCLK is divided by the DF value specified by the contents of register 3, A/D Control register, bits D0 and D1 to produce DCLK. The maximum  
value of DCLK is 2.5 MHz.  
(5)  
3

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