参数资料
型号: AD7328BRUZ
厂商: Analog Devices Inc
文件页数: 32/37页
文件大小: 0K
描述: IC ADC 12BIT+ SAR 8CHAN 20TSSOP
设计资源: Using AD7328 in Appls with Single-Ended Industrial-Level Signals (CN0047)
标准包装: 75
系列: iCMOS®
位数: 12
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 30mW
电压电源: 双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
产品目录页面: 777 (CN2011-ZH PDF)
Data Sheet
AD7328
Rev. C | Page 3 of 36
SPECIFICATIONS
Unless otherwise noted, VDD = 12 V to 16.5 V, VSS = 12 V to 16.5 V, VCC = 4.75 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, VREF = 2.5 V to 3.0 V
internal/external, fSCLK = 20 MHz, fS = 1 MSPS, TA = TMAX to TMIN. With VCC < 4.75 V, all specifications are typical.
Table 2.
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 50 kHz sine wave
Signal-to-Noise Ratio (SNR)
76
dB
Differential mode
72.5
dB
Single-ended/pseudo differential mode
Signal-to-Noise and Distortion
(SINAD)2
75
dB
Differential mode; ±2.5 V and ±5 V ranges
76
dB
Differential mode; 0 V to +10 V and ±10 V ranges
72
dB
Single-ended/pseudo differential mode; ±2.5 V and ±5 V
ranges
72.5
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Total Harmonic Distortion (THD)2
80
dB
Differential mode; ±2.5 V and ±5 V ranges
82
dB
Differential mode; 0 V to +10 V and ±10 V ranges
77
dB
Single-ended/pseudo differential mode; ±2.5 V and ±5 V
ranges
80
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Peak Harmonic or Spurious Noise
(SFDR)2
80
dB
Differential mode; ±2.5 V and ±5 V ranges
82
dB
Differential mode; 0 V to +10 V and ±10 V ranges
78
dB
Single-ended/pseudo differential mode; ±2.5 V and ±5 V
ranges
79
dB
Single-ended/pseudo differential mode; 0 V to +10 V
and ±10 V ranges
Intermodulation Distortion (IMD)2
fa = 50 kHz, fb = 30 kHz
Second-Order Terms
88
dB
Third-Order Terms
90
dB
Aperture Delay3
7
ns
Aperture Jitter3
50
ps
Common-Mode Rejection Ratio
(CMRR)2
79
dB
Up to 100 kHz ripple frequency; see Figure 17
Channel-to-Channel Isolation2
72
dB
fIN on unselected channels up to 100 kHz; see Figure 14
Full Power Bandwidth
22
MHz
At 3 dB
5
MHz
At 0.1 dB
DC ACCURACY4
All specifications are typical for 0 V to 10 V mode
Single-ended/pseudo differential mode 1 LSB =
FSR/4096, unless otherwise noted
Differential mode 1 LSB = FSR/8192, unless otherwise
noted
Resolution
13
Bits
No Missing Codes
12-bit
plus sign
(13 bits)
Bits
Differential mode
11-bit
plus sign
(12 bits)
Bits
Single-ended/pseudo differential mode
Integral Nonlinearity2
±1.1
LSB
Differential mode
±1
LSB
Single-ended/pseudo differential mode
0.7/+1.2
LSB
Single-ended/pseudo differential mode (LSB = FSR/8192)
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