参数资料
型号: AD7812YNZ
厂商: Analog Devices Inc
文件页数: 12/24页
文件大小: 0K
描述: IC ADC 10BIT 8CHAN SRL 20DIP
标准包装: 18
位数: 10
采样率(每秒): 350k
数据接口: DSP,串行
转换器数目: 1
功率耗散(最大): 10.5mW
电压电源: 单电源
工作温度: -40°C ~ 105°C
安装类型: 通孔
封装/外壳: 20-DIP(0.300",7.62mm)
供应商设备封装: 20-PDIP
包装: 管件
输入数目和类型: 8 个单端,单极;7 伪差分,单极
–2–
REV. B
AD7811/AD7812–SPECIFICATIONS
Parameter
Y Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 30 kHz Any Channel, fSAMPLE = 350 kHz
Signal to (Noise + Distortion) Ratio
58
dB min
VREF Internal or External
Total Harmonic Distortion (THD)
–66
dB max
Peak Harmonic or Spurious Noise
–80
dB typ
Intermodulation Distortion
fa = 29 kHz, fb = 30 kHz
Second Order Terms
–67
dB max
Third Order Terms
–67
dB max
Channel-to-Channel Isolation
–80
dB typ
fIN = 20 kHz
DC ACCURACY
Any Channel
Resolution
10
Bits
Minimum Resolution for Which
No Missing Codes are Guaranteed
10
Bits
Relative Accuracy
±1
LSB max
Differential Nonlinearity
±1
LSB max
Gain Error
±2
LSB max
Gain Error Match
±0.75
LSB max
Offset Error
±2
LSB max
Offset Error Match
±0.75
LSB max
ANALOG INPUT
Input Voltage Range
0
V min
VREF
V max
Input Leakage Current2
±1
A max
20
pF max
REFERENCE INPUTS
VREF Input Voltage Range
1.2
V min
VDD
V max
Input Leakage Current
±3
A max
Input Capacitance
20
pF max
ON-CHIP REFERENCE
Nominal 2.5 V
Reference Error
±2.5
% max
Temperature Coefficient
50
ppm/
°C typ
LOGIC INPUTS
VINH, Input High Voltage
2.4
V min
VDD = 5 V
± 10%
VINL, Input Low Voltage
0.8
V max
VDD = 5 V
± 10%
VINH, Input High Voltage
2
V min
VDD = 3 V
± 10%
VINL, Input Low Voltage
0.4
V max
VDD = 3 V
± 10%
Input Current, IIN
±1
A max
Typically 10 nA, VIN = 0 V to VDD
Input Capacitance, CIN
8
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
ISOURCE = 200
A
4V min
VDD = 5 V
± 10%
2.4
V min
VDD = 3 V
± 10%
Output Low Voltage, VOL
ISINK = 200
A
0.4
V max
High Impedance Leakage Current
±1
A max
High Impedance Capacitance
15
pF max
CONVERSION RATE
Conversion time
2.3
s max
Track/Hold Acquisition Time
200
ns max
(VDD = 2.7 V to 3.6 V, VDD = 5 V
10%, GND = 0 V, VREF = VDD
[EXT]. All specifications –40 C to +105 C unless otherwise noted.)
C
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