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參數(shù)資料
| 型號(hào)： | EVAL-AD7988-5SDZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | BAORD EVAL FOR AD7988-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | PulSAR® |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 輸入范圍： | 0 ~ VREF |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 3.5mW @ 500kSPS |
| 工作溫度： | -40°C ~ 125°C |
| 已用 IC / 零件： | AD7988-5 |
| 已供物品： | 板 |
Data Sheet
AD7988-1/AD7988-5
Rev. D | Page 3 of 24
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = –40°C to +125°C, unless otherwise noted.
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
IN+ IN
0
VREF
V
Absolute Input Voltage
IN+
0.1
VREF + 0.1
V
IN
0.1
+0.1
V
Analog Input CMRR
fIN = 1 kHz
60
dB
Leakage Current at 25°C
Acquisition phase
1
nA
Input Impedance
See the Analog Inputs section
ACCURACY
No Missing Codes
16
Bits
Differential Linearity Error
VREF = 5 V
0.9
±0.4
+0.9
LSB1
VREF = 2.5 V
±0.55
LSB1
Integral Linearity Error
VREF = 5 V
1.25
±0.6
+1.25
LSB1
VREF = 2.5 V
±0.65
LSB1
Transition Noise
VREF = 5 V
0.6
LSB1
VREF = 2.5 V
1.0
LSB1
±2
LSB1
Gain Error Temperature Drift
±0.35
ppm/°C
0.5
±0.08
+0.5
mV
Zero Temperature Drift
0.54
ppm/°C
Power Supply Sensitivity
VDD = 2.5 V ± 5%
±0.1
LSB1
THROUGHPUT
Conversion Rate
VIO ≥ 2.3 V up to 85°C, VIO ≥ 3.3 V above 85°C up to
125°C
0
100
kSPS
Transient Response
Full-scale step
500
ns
Conversion Rate
VIO ≥ 2.3 V up to 85°C, VIO ≥ 3.3 V above 85°C up to
125°C
0
500
kSPS
Transient Response
Full-scale step
400
ns
AC ACCURACY
Dynamic Range
VREF = 5 V
92
VREF = 2.5 V
87
Oversampled Dynamic Range
fO = 10 kSPS
111
Signal-to-Noise Ratio, SNR
fIN = 10 kHz, VREF = 5 V
90
91
fIN = 10 kHz, VREF = 2.5 V
86.5
Spurious-Free Dynamic Range, SFDR
fIN = 10 kHz
110
Total Harmonic Distortion, THD
fIN = 10 kHz
114
dB3
Signal-to-(Noise + Distortion), SINAD
fIN = 10 kHz, VREF = 5 V
91.5
fIN = 10 kHz, VREF = 2.5 V
87.0
1
LSB means least significant bit. With the 5 V input range, 1 LSB is 76.3 V.
2
See the Terminology section. These specifications include full temperature range variation, but not the error contribution from the external reference.
3
All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
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