参数资料
型号: AD7791BRMZ
厂商: Analog Devices Inc
文件页数: 15/20页
文件大小: 0K
描述: IC ADC 24BIT BUFFERED LP 10MSOP
标准包装: 50
位数: 24
采样率(每秒): 120
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 230µW
电压电源: 单电源
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 管件
输入数目和类型: 1 个差分,单极;1 个差分,双极
产品目录页面: 779 (CN2011-ZH PDF)
AD7791
Data Sheet
Rev. A | Page 4 of 20
SPECIFICATIONS (continued)1
Parameter
AD7791B
Unit
Test Conditions/Comments
REFERENCE INPUT (continued)
Normal Mode Rejection2
@ 50 Hz, 60 Hz
65
dB min
73 dB typ, 50 ± 1 Hz, 60 ± 1 Hz, FS[2:0] = 1004
@ 50 Hz
80
dB min
90 dB typ, 50 ± 1 Hz, FS[2:0] = 1014
@ 60 Hz
80
dB min
90 dB typ, 60 ± 1 Hz, FS[2:0] = 0114
Common Mode Rejection
AIN = 1 V
@ DC
100
dB typ
FS[2:0] = 1004
@ 50 Hz, 60 Hz
110
dB typ
50 ± 1 Hz (FS[2:0] = 1014), 60 ± 1 Hz (FS[2:0] = 0114)
LOGIC INPUTS
All Inputs Except SCLK2
VINL, Input Low Voltage
0.8
V max
VDD = 5 V
0.4
V max
VDD = 3 V
VINH, Input High Voltage
2.0
V min
VDD = 3 V or 5 V
SCLK Only (Schmitt-Triggered Input)2
VT(+)
1.4/2
V min/V max
VDD = 5 V
VT(–)
0.8/1.4
V min/V max
VDD = 5 V
VT(+) – VT(–)
0.3/0.85
V min/V max
VDD = 5 V
VT(+)
0.9/2
V min/V max
VDD = 3 V
VT(–)
0.4/1.1
V min/V max
VDD = 3 V
VT(+) - VT(–)
0.3/0.85
V min/V max
VDD = 3 V
Input Currents
±1
A max
VIN = VDD or GND
Input Capacitance
10
pF typ
All Digital Inputs
LOGIC OUTPUTS
VOH, Output High Voltage2
VDD – 0.6
V min
VDD = 3 V, ISOURCE = 100 A
VOL, Output Low Voltage2
0.4
V max
VDD = 3 V, ISINK = 100 A
VOH, Output High Voltage2
4
V min
VDD = 5 V, ISOURCE = 200 A
VOL, Output Low Voltage2
0.4
V max
VDD = 5 V, ISINK = 1.6 mA
Floating-State Leakage Current
±1
A max
Floating-State Output Capacitance
10
pF typ
Data Output Coding
Offset Binary
POWER REQUIREMENTS5
Power Supply Voltage
VDD – GND
2.5/5.25
V min/max
Power Supply Currents
IDD Current6
75
A max
65 A typ, VDD = 3.6 V, Unbuffered Mode
145
A max
130 A typ, VDD = 3.6 V, Buffered Mode
80
A max
73 A typ, VDD = 5.25 V, Unbuffered Mode
160
A max
145 A typ, VDD = 5.25 V, Buffered Mode
IDD (Power-Down Mode)
1
A max
5
Digital inputs equal to VDD or GND.
6
The current consumption can be further reduced by using the ADC in one of the low power modes (see Table 14).
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