参数资料
型号: AD7321BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 32/37页
文件大小: 0K
描述: IC ADC 12BIT+ SAR 2CHAN 14TSSOP
标准包装: 1,000
位数: 12
采样率(每秒): 500k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 17mW
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: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 带卷 (TR)
输入数目和类型: 2 个单端,单极;2 个单端,双极;1 个差分,单极;1 个差分,双极
配用: EVAL-AD7321CBZ-ND - BOARD EVALUATION FOR AD7321
Data Sheet
AD7321
Rev. B | Page 3 of 36
SPECIFICATIONS
VDD = 12 V to 16.5 V, VSS = 12 V to 16.5 V, VCC = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, VREF = 2.5 V to 3.0 V internal/external,
fSCLK = 10 MHz, fS = 500 kSPS, TA = TMAX to TMIN, unless otherwise noted.
Table 2.
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
FIN = 50 kHz sine wave
Signal-to-Noise Ratio (SNR)2
76
dB
Differential mode, VCC = 4.75 V to 5.25 V
75.5
dB
Differential mode, VCC < 4.75 V
72.5
dB
Single-ended/pseudo differential mode: ±10 V,
±2.5 V and ±5 V ranges, VCC = 4.75 V to 5.25 V
72
dB
Single-ended/pseudo differential mode: 0 V to
10 V VCC = 4.75 V to 5.25 V and all ranges at VCC <
4.75 V
Signal-to-Noise + Distortion
(SINAD)2
75
dB
Differential mode: ±2.5 V and ±5 V ranges
74
Differential mode: 0 V to 10 V
76
dB
Differential mode: ±10 V range
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
79
dB
Differential mode: 0 V to 10 V ranges
82
dB
Differential mode: ±10 V range
77
dB
Single-ended/pseudo differential mode:
±5 V range
79
dB
Single-ended/pseudo differential mode:
±2.5 V range
80
dB
Single-ended/pseudo differential mode: 0 V to
+10 V and ±10 V ranges
Peak Harmonic or Spurious
Noise (SFDR)2
81
dB
Differential mode: ±2.5 V and ±5 V ranges
80
dB
Differential mode: 0 V to 10 V ranges
82
dB
Differential mode: ±10 V ranges
78
dB
Single-ended/pseudo differential mode:
±5 V range
80
Single-ended/pseudo differential mode:
±2.5 V range
79
dB
Single-ended/pseudo differential mode: 0 V to
+10 V and ±10 V ranges
Intermodulation Distortion
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
(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
Full Power Bandwidth
22
MHz
At 3 dB
5
MHz
At 0.1 dB
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