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參數(shù)資料
| 型號(hào)： | EVAL-AD1974AZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 18/24頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD1974 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 4 |
| 位數(shù)： | 24 |
| 采樣率（每秒）： | 192k |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | 1.9 Vrms |
| 工作溫度： | -40°C ~ 125°C |
| 已用 IC / 零件： | AD1974 |
| 已供物品： | 板 |
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Data Sheet
AD1974
Rev. D | Page 3 of 24
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply Voltages (AVDD, DVDD)
3.3 V
Temperature Range1
As specified in Table 1 and Table 2
Master Clock
12.288 MHz (48 kHz fS, 256 × fS mode)
Input Sample Rate
48 kHz
Measurement Bandwidth
20 Hz to 20 kHz
Word Width
24 bits
Load Capacitance (Digital Output) 20 pF
Load Current (Digital Output)
±1 mA or 1.5 k to DVDD supply
Input Voltage High
2.0 V
Input Voltage Low
0.8 V
1
Functionally guaranteed at 40°C to +125°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at 25°C (ambient).
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution
All ADCs
24
Bits
Full-Scale Input Voltage (Differential)
1.9
V rms
Dynamic Range
20 Hz to 20 kHz, 60 dB input
No Filter (RMS)
98
102
dB
With A-Weighted Filter (RMS)
100
105
dB
Total Harmonic Distortion + Noise (THD + N)
1 dBFS
96
87
dB
Gain Error
10
+10
%
Interchannel Gain Mismatch
0.25
+0.25
dB
Offset Error
10
0
+10
mV
Gain Drift
100
ppm/°C
Interchannel Isolation
110
dB
CMRR
100 mV rms, 1 kHz
55
dB
100 mV rms, 20 kHz
55
dB
Input Resistance
14
k
Input Capacitance
10
pF
Input Common-Mode Bias Voltage
1.5
V
REFERENCE
Internal Reference Voltage
FILTR pin
1.50
V
External Reference Voltage
FILTR pin
1.32
1.50
1.68
V
Common-Mode Reference Output
CM pin
1.50
V
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