参数资料
型号: EVAL-AD7682EDZ
厂商: Analog Devices Inc
文件页数: 27/32页
文件大小: 0K
描述: BOARD EVAL AD7682
标准包装: 1
系列: PulSAR®
ADC 的数量: 1
位数: 16
采样率(每秒): 250k
数据接口: 串行
输入范围: ±VREF
在以下条件下的电源(标准): 12.5mW @ 250kSPS,5V
工作温度: -40°C ~ 85°C
已用 IC / 零件: AD7682
已供物品:
AD7682/AD7689
Data Sheet
Rev. D | Page 4 of 32
SPECIFICATIONS
VDD = 2.3 V to 5.5 V, VIO = 1.8 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
Unipolar mode
0
+VREF
0
+VREF
V
Bipolar mode
VREF/2
+VREF/2
VREF/2
+VREF/2
Absolute Input Voltage
Positive input, unipolar
and bipolar modes
0.1
VREF + 0.1
0.1
VREF + 0.1
V
Negative or COM input,
unipolar mode
0.1
+0.1
0.1
+0.1
V
Negative or COM input,
bipolar mode
VREF/2 0.1
VREF/2
VREF/2 + 0.1
VREF/2 0.
1
VREF/2
VREF/2 + 0.1
V
Analog Input CMRR
fIN = 250 kHz
68
dB
Leakage Current at 25°C
Acquisition phase
1
nA
Input Impedance1
THROUGHPUT
Conversion Rate
Full Bandwidth2
VDD = 4.5 V to 5.5 V
0
250
0
250
kSPS
VDD = 2.3 V to 4.5 V
0
200
0
200
kSPS
Bandwidth2
VDD = 4.5 V to 5.5 V
0
62.5
0
62.5
kSPS
VDD = 2.3 V to 4.5 V
0
50
0
50
kSPS
Transient Response
Full-scale step,
full bandwidth
1.8
μs
Full-scale step,
bandwidth
14.5
μs
ACCURACY
No Missing Codes
15
16
Bits
Integral Linearity Error
4
+4
1.5
±0.4
+1.5
LSB3
Differential Linearity Error
1
±0.25
+1.5
LSB
Transition Noise
REF = VDD = 5 V
0.6
0.5
LSB
Gain Error4
32
+32
8
±1
+8
LSB
Gain Error Match
±2
4
±0.5
+4
LSB
Gain Error Temperature Drift
±1
ppm/°C
Offset Error4
VDD = 4.5 V to 5.5 V
32
+32
8
±1
+8
LSB
VDD = 2.3 V to 4.5 V
±32
±5
LSB
Offset Error Match
±2
4
±0.5
+4
LSB
Offset Error Temperature Drift
±1
ppm/°C
Power Supply Sensitivity
VDD = 5 V ± 5%
±1.5
LSB
AC ACCURACY5
Dynamic Range
90.5
93.8
dB6
Signal-to-Noise
fIN = 20 kHz, VREF = 5 V
90
92.5
93.5
dB
fIN = 20 kHz, VREF = 4.096 V,
internal REF
89
91
92.3
dB
fIN = 20 kHz, VREF = 2.5 V,
internal REF
86
87.5
88.8
dB
SINAD
fIN = 20 kHz, VREF = 5 V
89
91
92.5
dB
fIN = 20 kHz, VREF = 5 V,
60 dB input
30.5
33.5
dB
fIN = 20 kHz, VREF = 4.096 V
internal REF
88
90
91
dB
fIN = 20 kHz, VREF = 2.5 V
internal REF
86
87
88.4
dB
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