參數(shù)資料
型號: AD7674ASTZ
廠商: Analog Devices Inc
文件頁數(shù): 23/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT 800KSPS 48-LQFP
產(chǎn)品培訓模塊: ADC Applications
ADC Architectures
ADC DC/AC Performance
標準包裝: 1
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 800k
數(shù)據(jù)接口: 串行,并聯(lián)
轉換器數(shù)目: 1
功率耗散(最大): 138mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應商設備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 1 個差分,雙極
產(chǎn)品目錄頁面: 778 (CN2011-ZH PDF)
配用: EVAL-AD7674CBZ-ND - BOARD EVALUATION FOR AD7674
AD7674
Rev. A | Page 4 of 28
Parameter
Conditions
Min
Typ
Max
Unit
REFERENCE
External Reference Voltage Range
REF
3
4.096
AVDD + 0.1
V
REF Voltage with Reference Buffer
REFBUFIN = 2.5 V
4.05
4.096
4.15
V
Reference Buffer Input Voltage Range
REFBUFIN
1.8
2.5
2.6
V
REFBUFIN Input Current
–1
+1
μA
REF Current Drain
800 kSPS throughput
330
μA
DIGITAL INPUTS
Logic Levels
VIL
–0.3
+0.8
V
VIH
+2.0
DVDD + 0.3
V
IIL
–1
+1
μA
IIH
–1
+1
μA
DIGITAL OUTPUTS
Data Format5
Pipeline Delay6
VOL
ISINK = 1.6 mA
0.4
V
VOH
ISOURCE = –500 μA
OVDD – 0.6
V
POWER SUPPLIES
Specified Performance
AVDD
4.75
5
5.25
V
DVDD
4.75
5
5.25
V
OVDD
2.7
DVDD + 0.37
V
Operating Current8
800 kSPS throughput
AVDD
16
mA
DVDD9
6.5
mA
OVDD9
50
μA
POWER DISSIPATION9
PDBUF high @ 500 kSPS10
78
90
mW
PDBUF high @ 1 kSPS10
160
μW
PDBUF high @ 800 kSPS8
114
126
mW
PDBUF low @ 800 kSPS8
126
138
mW
TEMPERATURE RANGE11
Specified Performance
TMIN to TMAX
–40
+85
°C
1 See Analog Inputs section.
2 LSB means Least Significant Bit. With the ±4.096 V input range, 1 LSB is 31.25 μV.
3 See Definitions of Specifications section. The nominal gain error is not centered at zero and is 0.029% of FSR. This specification is the deviation from this nominal
value. These specifications do not include the error contribution from the external reference, but do include the error contribution from the reference buffer if used.
4 All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale unless otherwise specified.
5 Data Format Parallel or Serial 18-Bit.
6 Conversion results are available immediately after completed conversion.
7 The max should be the minimum of 5.25 V and DVDD + 0.3 V.
8 In Warp mode.
9 Tested in Parallel Reading mode.
10 In Impulse mode.
11 Contact factory for extended temperature range.
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