VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, TA
參數(shù)資料
型號: AD7984BRMZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 18/24頁
文件大小: 0K
描述: IC ADC 18BIT 1.3MSPS SAR 10MSOP
設(shè)計資源: Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033)
標(biāo)準(zhǔn)包裝: 1,000
系列: PulSAR®
位數(shù): 18
采樣率(每秒): 1.33M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 14mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,單極
AD7984
Rev. A | Page 3 of 24
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, TA = 40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUT
Voltage Range
IN+ IN
VREF
+VREF
V
Absolute Input Voltage
IN+, IN
0.1
VREF + 0.1
V
Common-Mode Input Range
IN+, IN
VREF × 0.475
VREF × 0.5
VREF × 0.525
V
Analog Input CMRR
fIN = 450 kHz
67
Leakage Current at 25°C
Acquisition phase
200
nA
Input Impedance
See the Analog Inputs section
ACCURACY
No Missing Codes
18
Bits
Differential Linearity Error
1
+1.5
Integral Linearity Error
2.25
+2.25
Transition Noise
0.95
Gain Error, TMIN to TMAX3
0.075
±0.022
+0.075
% of FS
Gain Error Temperature Drift
0.6
ppm/°C
Zero Error, TMIN to TMAX3
700
±100
+700
μV
Zero Temperature Drift
0.3
ppm/°C
Power Supply Sensitivity
VDD = 2.5 V
± 5%
90
THROUGHPUT
Conversion Rate
0
1.33
MSPS
Transient Response
Full-scale step
290
ns
AC ACCURACY
Dynamic Range
VREF = 5 V
99.7
Signal-to-Noise, SNR
fIN = 1 kHz, VREF = 5 V, TA = 25°C
96.5
98.5
Spurious-Free Dynamic Range, SFDR
fIN = 10 kHz
112.5
Total Harmonic Distortion4, THD
fIN = 10 kHz
110.5
Signal-to-(Noise + Distortion), SINAD
fIN = 10 kHz, VREF = 5 V, TA = 25°C
98
1 All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
2 LSB means least significant bit. With the ±5 V input range, one LSB is 38.15 μV.
3 See Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
4 Tested fully in production at fIN = 1 kHz.
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