参数资料
型号: AD7634BCPZ
厂商: Analog Devices Inc
文件页数: 23/32页
文件大小: 0K
描述: IC ADC 18BIT BIPO PROGR 48-LFCSP
标准包装: 1
系列: PulSAR®
位数: 18
采样率(每秒): 670k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 225mW
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: 48-VFQFN 裸露焊盘,CSP
供应商设备封装: 48-LFCSP-VQ(7x7)
包装: 托盘
输入数目和类型: 1 个差分,单极;1 个差分,双极
Data Sheet
AD7634
Rev. B | Page 3 of 32
SPECIFICATIONS
AVDD = DVDD = 5 V; OVDD = 2.7 V to 5.5 V; VCC = 15 V; VEE = 15 V; VREF = 5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUTS
Differential Voltage Range, VIN
(VIN+) (VIN)
0 V to 5 V
VIN = 10 V p-p
VREF
+VREF
V
0 V to 10 V
VIN = 20 V p-p
2 VREF
+2 VREF
V
±5 V
VIN = 20 V p-p
2 VREF
+2 VREF
V
±10 V
VIN = 40 V p-p
4 VREF
+4 VREF
V
Operating Voltage Range
VIN+, VIN to AGND
0 V to 5 V
0.1
+5.1
V
0 V to 10 V
0.1
+10.1
V
±5 V
5.1
+5.1
V
±10 V
10.1
+10.1
V
Common-Mode Voltage Range
VIN+, VIN
5 V
VREF/2 0.1
VREF/2
VREF/2 + 0.1
V
10 V
VREF 0.2
VREF
VREF + 0.2
V
Bipolar Ranges
0.1
0
+0.1
V
Analog Input CMRR
fIN = 100 kHz
75
dB
Input Current
VIN = ±5 V, ±10 V @ 670 kSPS
μA
Input Impedance
THROUGHPUT SPEED
Complete Cycle
In warp mode
1.49
μs
Throughput Rate
In warp mode
1
670
kSPS
Time Between Conversions
In warp mode
1
ms
Complete Cycle
In normal mode
1.75
μs
Throughput Rate
In normal mode
0
570
kSPS
Complete Cycle
In impulse mode
2.22
μs
Throughput Rate
In impulse mode
0
450
kSPS
DC ACCURACY
Integral Linearity Error2
600 kSPS throughput
2.5
±1.5
+2.5
LSB3
Integral Linearity Error
670 kSPS throughput
±1.5
LSB
No Missing Codes
18
Bits
Differential Linearity Error2
1
+ 2.5
LSB
Transition Noise
0.75
LSB
Unipolar Zero Error
0.06
+ 0.06
%FS
Bipolar Zero Error
0.03
+ 0.03
%FS
Zero Error Temperature Drift
±0.5
ppm/°C
Bipolar Full-Scale Error
0.09
+0.09
%FS
Unipolar Full-Scale Error
0.07
+0.07
%FS
Full-Scale Error Temperature Drift
±0.5
ppm/°C
Power Supply Sensitivity
AVDD = 5 V ± 5%
3
LSB
AC ACCURACY
Dynamic Range
VIN = 0 to 5 V, fIN = 2 kHz, 60 dB
100
101.8
dB4
VIN = all other input ranges, fIN = 2 kHz, 60 dB
100
102.5
dB
Signal-to-Noise Ratio (SNR)
VIN = 0 to 5 V, fIN = 2 kHz
98.5
100.5
dB
VIN = all other input ranges, fIN = 2 kHz
98.5
101
dB
Signal-to-(Noise + Distortion), SINAD
fIN = 2 kHz
100
dB
Total Harmonic Distortion
fIN = 2 kHz
112
dB
Spurious-Free Dynamic Range
fIN = 2 kHz
113
dB
3 dB Input Bandwidth
VIN = 0 V to 5 V
45
MHz
SAMPLING DYNAMICS
Aperture Delay
2
ns
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
500
ns
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