参数资料
| 型号： | AD7891YPZ-1REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC DAS 12BIT 8CH 44-PLCC |
| 产品变化通告： | Product Discontinuance 27/Oct/2011 |
| 标准包装： | 500 |
| 类型： | 数据采集系统（DAS） |
| 分辨率（位）： | 12 b |
| 采样率（每秒）： | 500k |
| 数据接口： | 串行，并联 |
| 电压电源： | 单电源 |
| 电源电压： | 5V |
| 工作温度： | -55°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-LCC（J 形引线） |
| 供应商设备封装： | 44-PLCC（16.59x16.59） |
| 包装： | 带卷 (TR) |
–2–
REV. D
AD7891–SPECIFICATIONS
(VDD = 5 V
5%, AGND = DGND = 0 V, REF IN = 2.5 V. All specifications TMIN to TMAX,
unless otherwise noted.)
Parameter
A Version
1
B Version
Y Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
2
Sample Rate = 454.5 kSPS
3 (AD7891-1),
500 kSPS
3 (AD7891-2). Any channel.
Signal-to-(Noise + Distortion) Ratio
4
@ 25
∞C70
7070dB min
TMIN to TMAX
70
dB min
Total Harmonic Distortion
4
–78
dB max
Peak Harmonic or Spurious Noise
4
–80
dB max
Intermodulation Distortion
4
fa = 9 kHz, fb = 9.5 kHz.
Second-Order Terms
–80
dB typ
Third-Order Terms
–80
dB typ
Channel-to-Channel Isolation
4
–80
dB max
DC ACCURACY
Any channel.
Resolution
12
Bits
Minimum Resolution for which
No Missing Codes Are Guaranteed
12
Bits
Relative Accuracy
4
±1
±0.75
±1
LSB max
Differential Nonlinearity
4
±1
LSB max
Positive Full-Scale Error
4
±3
LSB max
Positive Full-Scale Error Match
4, 5
0.6
LSB typ
1.5 LSB max.
Unipolar Offset Error
±4
LSB max
Input ranges of 0 V to 2.5 V, 0 V to 5 V.
Unipolar Offset Error Match
5
0.1
LSB typ
1 LSB max.
Negative Full-Scale Error
4
±3
LSB max
Input ranges of
±2.5 V, ±5V, ±10 V.
Negative Full-Scale Error Match
4, 5
0.6
LSB typ
1.5 LSB max.
Bipolar Zero Error
±4
LSB max
Input ranges of
±2.5 V, ±5V, ±10 V.
Bipolar Zero Error Match
5
0.2
LSB typ
1.5 LSB max.
ANALOG INPUTS
AD7891-1 Input Voltage Range
±5
±5V
Input applied to both VINXA and VINXB.
±10
V
Input applied to VINXA, VINXB = AGND.
AD7891-1 VINXA Input Resistance
7.5
k
W min
Input range of
±5V.
AD7891-1 VINXA Input Resistance
15
k
W min
Input range of
±10 V.
AD7891-2 Input Voltage Range
0 to 2.5
V
Input applied to both VINXA and VINXB.
0 to 5
V
Input applied to VINXA, VINXB = AGND.
±2.5
V
Input applied to VINXA, VINXB = REF IN
6.
AD7891-2 VINXA Input Resistance
1.5
k
W min
Input ranges of
±2.5 V and 0 V to 5 V.
AD7891-2 VINXA Input Current
±50
nA max
Input range of 0 V to 2.5 V.
REFERENCE INPUT/OUTPUT
REF IN Input Voltage Range
2.375/2.625 2.375/2.625 2.375/2.625 V min/V max
2.5 V
± 5%.
Input Impedance
1.6
k
W min
Resistor connected to internal reference node.
Input Capacitance
5
10
pF max
REF OUT Output Voltage
2.5
V nom
REF OUT Error @ 25
∞C
±10
mV max
TMIN to TMAX
±20
mV max
REF OUT Temperature Coefficient
25
ppm/
∞C typ
REF OUT Output Impedance
5
k
W nom
See REF IN input impedance.
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
VDD = 5 V
± 5%.
Input Low Voltage, VINL
0.8
V max
VDD = 5 V
± 5%.
Input Current, IINH
±10
mA max
Input Capacitance
5 C
IN
10
pF max
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7891YS1 | 制造商:AD 功能描述:New |
| AD7891YS-1 | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin MQFP |
| AD7891YS-1REEL | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin MQFP T/R 制造商:Analog Devices 功能描述:ADC SGL 454.5KSPS 12-BIT PARALLEL/SERL 44MQFP - Tape and Reel |
| AD7891YS-2 | 制造商:Analog Devices 功能描述:ADC Single 500ksps 12-bit Parallel/Serial 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8 CHANNEL, 12-BIT ADC I.C. - Bulk |
| AD7891YS-2REEL | 制造商:Analog Devices 功能描述:ADC Single 500ksps 12-bit Parallel/Serial 44-Pin MQFP T/R |
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