参数资料
型号: AD7707BRZ-REEL
厂商: Analog Devices Inc
文件页数: 34/52页
文件大小: 0K
描述: IC ADC 16BIT 3CHAN 20SOIC
标准包装: 1,000
位数: 16
采样率(每秒): 500
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 1mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC W
包装: 带卷 (TR)
输入数目和类型: 1 个单端,单极;1 个单端,双极;2 个伪差分,单极;2 个伪差分,双极
AD7707
Rev. B | Page 4 of 52
SPECIFICATIONS
AVDD = DVDD = 3 V or 5 V, REF IN(+) = 1.225 V with AVDD = 3 V and 2.5 V with AVDD = 5 V; REF IN() = GND; VBIAS = REFIN(+);
MCLK IN = 2.4576 MHz unless otherwise noted. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
B Version1
Unit
Conditions/Comments
STATIC PERFORMANCE
Low Level Input Channels (AIN1 and AIN2)
No Missing Codes
16
Bits min
Guaranteed by design; filter notch < 60 Hz
Output Noise
See
Depends on filter cutoffs and selected gain
Integral Nonlinearity2
±0.003
% of FSR max
Filter notch < 60 Hz; typically ±0.0003%
Unipolar Offset Error3
Unipolar Offset Drift4
0.5
μV/°C typ
Bipolar Zero Error3
Bipolar Zero Drift4
0.5
μV/°C typ
For gains of 1, 2, and 4
0.1
μV/°C typ
For gains of 8, 16, 32, 64, and 128
Positive Full-Scale Error3, 5
Full-Scale Drift4, 6
0.5
μV/°C typ
0.5
ppm of FSR/°C typ
Bipolar Negative Full-Scale Error2
±0.003
% of FSR max
Typically ±0.0007%
Bipolar Negative Full-Scale Drift4
1
μV/°C typ
For gains of 1 to 4
0.6
μV/°C typ
For gains of 8 to 128
HIGH LEVEL INPUT CHANNEL (AIN3)
No Missing Codes
16
Bits min
Guaranteed by design; filter notch < 60 Hz
Output Noise
See
Depends on filter cutoffs and selected gain
Integral Nonlinearity2
±0.003
% of FSR max
Filter notch < 60 Hz; typically ±0.0003%
Unipolar Offset Error9
±10
mV max
Typically within ±1.5 mV
Unipolar Offset Drift
4
μV/°Ctyp
Bipolar Zero Error9
±10
mV max
Typically within ±1.5 mV
Bipolar Zero Drift
4
μV/°C typ
For gains of 1, 2, and 4
1
μV/°C typ
For gains of 8, 16, 32, 64, and 128
Gain Error
±0.2
% typ
Typically within ±0.05%
Gain Drift
0.5
ppm of FSR/°C typ
Negative Full-Scale Error2
±0.0012
% of FSR typ
LOW LEVEL ANALOG INPUTS/REFERENCE INPUTS
Specifications for AIN and REF IN,
unless otherwise noted
Input Common-Mode Rejection (CMR)2
Low level input channels, AIN1 and AIN2
AVDD = 5 V
Gain = 1
100
dB typ
Gain = 2
105
dB typ
Gain = 4
110
dB typ
Gain = 8 to 128
130
dB typ
AVDD = 3 V
Gain = 1
105
dB typ
Gain = 2
110
dB typ
Gain = 4
120
dB typ
Gain = 8 to 128
130
dB typ
Normal-Mode 50 Hz Rejection2
98
dB typ
For filter notches of 10 Hz, 25 Hz, 50 Hz; ±0.02 × fNOTCH
Normal-Mode 60 Hz Rejection2
98
dB typ
For filter notches of 10 Hz, 20 Hz, 60 Hz; ±0.02 × fNOTCH
Common-Mode 50 Hz Rejection2
150
dB typ
For filter notches of 10 Hz, 25 Hz, 50 Hz; ±0.02 × fNOTCH
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