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参数资料
| 型号： | ADA4941-1YRZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 21/25页 |
| 文件大小： | 0K |
| 描述： | IC DIFF ADC DRIVER 18BIT 8SOIC |
| 设计资源： | Converting a Single-Ended Signal with AD7982 Differential PulSAR ADC (CN0032) Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033) |
| 标准包装： | 1,000 |
| 类型： | ADC 驱动器 |
| 应用： | 数据采集 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
ADA4941-1
Rev. C | Page 4 of 24
TA = 25°C, VS = 5 V, OUT+ connected to FB (G = 2), RL,dm = 1 k, REF = 2.5 V, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Bandwidth
VO = 0.1 V p-p
22
31
MHz
VO = 2.0 V p-p
4.9
7
MHz
Overdrive Recovery Time
+Recover/Recovery
200/600
ns
Slew Rate
VO = 2 V step
24.5
V/s
Settling Time 0.005%
VO = 6 V p-p step
610
ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion
fC = 40 kHz, VO = 2 V p-p, HD2/HD3
118/119
dBc
fC = 100 kHz, VO = 2 V p-p, HD2/HD3
110/112
dBc
fC = 1 MHz, VO = 2 V p-p, HD2/HD3
83/73
dBc
RTO Voltage Noise
f = 100 kHz
10.2
nV/√Hz
Input Current Noise
f = 100 kHz
1.6
pA/√Hz
DC PERFORMANCE
Differential Output Offset Voltage
0.2
0.8
mV
Differential Input Offset Voltage Drift
1.0
V/°C
Single-Ended Input Offset Voltage
Amp A1 or Amp A2
0.1
0.4
mV
Single-Ended Input Offset Voltage Drift
0.3
V/°C
Input Bias Current
IN and REF
3
4.5
A
Input Offset Current
IN and REF
0.1
A
Gain
(+OUT OUT)/(IN REF)
1.98
2
2.01
V/V
Gain Error
1
+1
%
Gain Error Drift
1
5
ppm/°C
INPUT CHARACTERISTICS
Input Resistance
IN and REF
24
M
Input Capacitance
IN and REF
1.4
pF
Input Common-Mode Voltage Range
0.2
3.9
V
Common-Mode Rejection Ratio (CMRR)
CMRR = VOS,dm/VCM, VREF = VIN, VCM = 0.2 V to 3.9 V, G = 4
84
106
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each single-ended output, G = 4
±4.85
±4.93
V
Output Current
25
mA
Capacitive Load Drive
20% overshoot, VO, dm = 200 mV p-p
20
pF
POWER SUPPLY
Operating Range
2.7
12
V
Quiescent Current
2.3
2.6
mA
Quiescent Current—Disable
12
20
A
Power Supply Rejection Ratio (PSRR)
+PSRR
PSRR = VOS, dm/ΔVS, G = 4
87
100
dB
PSRR
87
110
dB
DISABLE
DIS Input Voltage
Disabled, DIS = High
≥1.5
V
Enabled, DIS = Low
≤1.0
V
DIS Input Current
Disabled, DIS = High
5.5
8
A
Enabled, DIS = Low
4
6
A
Turn-On Time
0.7
s
Turn-Off Time
30
s
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