参数资料
型号: ADS7825UBE4
厂商: Texas Instruments
文件页数: 17/21页
文件大小: 0K
描述: IC 16BIT 4-CHAN MUX ADC 28-SOIC
产品培训模块: Data Converter Basics
标准包装: 20
位数: 16
采样率(每秒): 40k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 50mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC
包装: 管件
输入数目和类型: 4 个单端,双极
5
ADS7825
TYPICAL PERFORMANCE CURVES
At TA = +25°C, fS = 40kHz, VS1 = VS2 = +5V, using internal reference, unless otherwise noted.
FREQUENCY SPECTRUM
(8192 Point FFT; f
IN = 1.02kHz, –0.5dB)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
5
10
15
20
Amplitude
(dB)
Frequency (kHz)
–60.0
–70.0
–80.0
–90.0
–100.0
–110.0
–120.0
–130.0
–140.0
CROSSTALK vs INPUT FREQUENCY
(Active Channel Amplitude = –0.1dB)
100
1k
Active Channel Input Frequency (Hz)
Resulting
Amplitude
on
Selected
Channel
(dB)
(Input
Grounded)
10k
100k
Adjacent Channels, Worst Pair
Non-Adjacent Channels
Adjacent Channels
Measurement Limit
ADJACENT CHANNEL CROSSTALK, WORST PAIR
(8192 Point FFT; AIN
3 = 1.02kHz, –0.1dB; AIN2 = AGND)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
5
10
15
20
Amplitude
(dB)
Frequency (kHz)
ADJACENT CHANNEL CROSSTALK, WORST PAIR
(8192 Point FFT; AIN
3 = 10.1kHz, –0.1dB; AIN2 = AGND )
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
5
10
15
20
Amplitude
(dB)
Frequency (kHz)
100
90
80
70
60
50
40
30
100
Input Signal Frequency (Hz)
SINAD
(dB)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY (f
IN = –0.1dB)
1k
10k
100k
100
90
80
70
60
50
40
30
20
10
0
Input Signal Frequency (kHz)
SINAD
(dB)
SIGNAL-TO-(NOISE + DISTORTION)
vs INPUT FREQUENCY AND INPUT AMPLITUDE
2
4
6
8
10
12
14
16
18
20
0dB
–20dB
–60dB
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