參數資料
型號: AD7321BRUZ-REEL7
廠商: Analog Devices Inc
文件頁數: 33/37頁
文件大?。?/td> 0K
描述: IC ADC 12BIT+ SAR 2CHAN 14TSSOP
標準包裝: 1,000
位數: 12
采樣率(每秒): 500k
數據接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉換器數目: 1
功率耗散(最大): 17mW
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 14-TSSOP
包裝: 帶卷 (TR)
輸入數目和類型: 2 個單端,單極;2 個單端,雙極;1 個差分,單極;1 個差分,雙極
配用: EVAL-AD7321CBZ-ND - BOARD EVALUATION FOR AD7321
AD7321
Data Sheet
Rev. B | Page 4 of 36
B Version
Parameter1
Min
Typ
Max
Unit
Test Conditions/Comments
DC ACCURACY4
Differential mode LSB = FSR/8192
Single-ended/pseudo differential mode
LSB = FSR/4096, 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; VCC = 3 V to 5.25 V, typ for
VCC = 2.7 V
±1
LSB
Single-ended/pseudo differential mode, VCC =
3 V to 5.25 V, typ for VCC = 2.7 V
0.7/+1.2
LSB
Single ended/pseudo differential mode
LSB = FSR/8192
Differential Nonlinearity2
0.9/+1.2
LSB
Differential mode; guaranteed no missing
codes to 13 bits
±0.9
LSB
Single-ended mode; guaranteed no missing
codes to 12 bits
0.7/+1
LSB
Single ended/pseudo differential mode,
LSB = FSR/8192
Differential mode LSB = FSR/8192
Offset Error2, 5
0.085/+0.122
%FSR
Equates to 7/+10 LSBs
Offset Error Match2,5
±0.006
%FSR
Equates to ±0.5 LSBs
Gain Error2, 5
±0.171
%FSR
Equates to ±14 LSBs
Gain Error Match2, 5
±0.006
%FSR
Equates to ±0.5 LSBs
Positive Full-Scale Error2, 6
±0.085
%FSR
Equates to ±7 LSBs
Positive Full-Scale Error
Match2,6
±0.006
%FSR
Equates to ±0.5 LSBs
Bipolar Zero Error2, 6
±0.092
%FSR
Equates to ±7.5 LSBs
Bipolar Zero Error Match2, 6
±0.006
%FSR
Equates to ±0.5 LSBs
Negative Full-Scale Error2, 6
±0.073
%FSR
Equates to ±6 LSBs
Negative Full-Scale Error
Match2,6
±0.006
%FSR
Equates to ±0.5 LSBs
Single-ended/pseudo differential mode
LSB = FSR/4096
Offset Error2, 5
0.098/+0.22
%FSR
Equates to 4/+9 LSBs
Offset Error Match2, 5
±0.015
%FSR
Equates to ±0.6 LSBs
Gain Error2, 5
±0.195
%FSR
Equates to ±8 LSBs
Gain Error Match2, 5
±0.012
%FSR
Equates to ±0.5 LSBs
Positive Full-Scale Error2, 6
±0.098
%FSR
Equates to ±4 LSBs
Positive Full-Scale Error
Match2,6
±0.012
%FSR
Equates to ±0.5 LSBs
Bipolar Zero Error2, 6
±0.208
%FSR
Equates to ±8.5LSBs
Bipolar Zero Error Match2, 6
±0.012
%FSR
Equates to ±0.5 LSBs
Negative Full-Scale Error2, 6
±0.098
%FSR
Equates to ±4 LSBs
Negative Full-Scale Error
Match2, 6
±0.012
%FSR
Equates to ±0.5 LSBs
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