参数资料
型号: AD7863BRZ-3
厂商: Analog Devices Inc
文件页数: 18/24页
文件大小: 0K
描述: IC ADC 14BIT DUAL 2CHAN 28SOIC
标准包装: 27
位数: 14
采样率(每秒): 175k
数据接口: 并联
转换器数目: 2
功率耗散(最大): 94.5mW
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: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 管件
输入数目和类型: 4 个单端,单极;4 个单端,双极
AD7863
Rev. B | Page 3 of 24
SPECIFICATIONS
VDD = 5 V ± 5%, AGND = DGND = 0 V, REF = Internal. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
A Version1
B Version1
Unit
Test Conditions/Comments
SAMPLE AND HOLD
3 dB Small Signal Bandwidth
7
MHz typ
Aperture Delay2
35
ns max
Aperture Jitter2
50
ps typ
Aperture Delay Matching2
350
ps max
DYNAMIC PERFORMANCE3
fIN = 80.0 kHz, fS = 175 kSPS
Signal-to-(Noise + Distortion) Ratio4
@ 25°C
78
dB min
TMIN to TMAX
77
dB min
Total Harmonic Distortion4
82
dB max
87 dB typ
Peak Harmonic or Spurious Noise4
82
dB max
90 dB typ
Intermodulation Distortion4
fa = 49 kHz, fb = 50 kHz
Second Order Terms
93
dB typ
Third Order Terms
89
dB typ
Channel-to-Channel Isolation4
86
dB typ
fIN = 50 kHz sine wave
DC ACCURACY
Any channel
Resolution
14
Bits
Minimum Resolution for Which No
Missing Codes are Guaranteed
14
Bits
Relative Accuracy4
±2.5
±2
LSB max
Differential Nonlinearity4
+2 to 1
LSB max
AD7863-10, AD7863-3
Positive Gain Error4
±10
±8
LSB max
Positive Gain Error Match4
10
LSB max
Negative Gain Error4
±10
±8
LSB max
Negative Gain Error Match4
10
LSB max
Bipolar Zero Error
±10
±8
LSB max
Bipolar Zero Error Match
8
6
LSB max
AD7863-2
Positive Gain Error4
±14
LSB max
Positive Gain Error Match4
16
LSB max
Unipolar Offset Error
±14
LSB max
Unipolar Offset Error Match
10
LSB max
ANALOG INPUTS
AD7863-10
Input Voltage Range
±10
V
Input Resistance
9
kΩ typ
AD7863-3
Input Voltage Range
±2.5
V
Input Resistance
3
kΩ typ
AD7863-2
Input Voltage Range
2.5
V
Input Current
100
nA max
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