Table 2. –40°C to +85°C, VREF = 4.096 V, AV" />
參數(shù)資料
型號: AD7674ACPZRL
廠商: Analog Devices Inc
文件頁數(shù): 22/28頁
文件大?。?/td> 0K
描述: IC ADC 18BIT SAR 5V 48LFCSP
產(chǎn)品培訓(xùn)模塊: ADC Applications
ADC Architectures
ADC DC/AC Performance
標(biāo)準(zhǔn)包裝: 2,500
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(zhuǎn)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-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 48-LFCSP-VQ(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,雙極
配用: EVAL-AD7674CBZ-ND - BOARD EVALUATION FOR AD7674
AD7674
Rev. A | Page 3 of 28
SPECIFICATIONS
Table 2. –40°C to +85°C, VREF = 4.096 V, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUT
Voltage Range
VIN+ – VIN–
–VREF
+VREF
V
Operating Input Voltage
VIN+, VIN– to AGND
–0.1
AVDD
V
Analog Input CMRR
fIN = 100 kHz
65
dB
Input Current
800 kSPS throughput
100
μA
Input Impedance1
THROUGHPUT SPEED
Complete Cycle
In warp mode
1.25
μs
Throughput Rate
In warp mode
1
800
kSPS
Time between Conversions
In warp mode
1
ms
Complete Cycle
In normal mode
1.5
μs
Throughput Rate
In normal mode
0
666
kSPS
Complete Cycle
In impulse mode
1.75
μs
Throughput Rate
In impulse mode
0
570
kSPS
DC ACCURACY
Integral Linearity Error
–2.5
+2.5
LSB2
Differential Linearity Error
–1
+1.75
LSB
No Missing Codes
18
Bits
Transition Noise
VREF = 5 V
0.7
LSB
Zero Error, TMIN to TMAX
In warp mode
–25
+25
LSB
Zero Error, TMIN to TMAX
In normal or impulse mode
–85
+85
LSB
Zero Error Temperature Drift
All modes
±0.5
ppm/°C
Gain Error, TMIN to TMAX3
In warp mode
–0.034
+0.034
% of FSR
Gain Error, TMIN to TMAX3
In normal or impulse mode
–0.048
+0.048
% of FSR
Gain Error Temperature Drift
All modes
±1.6
ppm/°C
Power Supply Sensitivity
AVDD = 5 V ± 5%
±4
LSB
AC ACCURACY
Signal-to-Noise
fIN = 2 kHz, VREF = 5 V
101
dB4
VREF = 4.096 V
97.5
99
dB
fIN = 10 kHz, VREF = 4.096 V
98
dB
fIN = 100 kHz, VREF = 4.096 V
97
dB
Dynamic Range
VIN+ = VIN– = VREF/2 = 2.5 V
103
dB
Spurious-Free Dynamic Range
fIN = 2 kHz
120
dB
fIN = 10 kHz
118
dB
fIN = 100 kHz
105
dB
Total Harmonic Distortion
fIN = 2 kHz
–115
dB
fIN = 10 kHz
–113
dB
fIN = 100 kHz
–98
dB
Signal-to-(Noise + Distortion)
fIN = 2 kHz, VREF = 4.096 V
98
dB
fIN = 2 kHz, –60 dB input
40
dB
–3 dB Input Bandwidth
26
MHz
SAMPLING DYNAMICS
Aperture Delay
2
ns
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
250
ns
Overvoltage Recovery
250
ns
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