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參數(shù)資料
| 型號： | ADA4941-1YRZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 20/25頁 |
| 文件大小： | 0K |
| 描述： | IC DIFF ADC DVR 18BIT 8-SOIC |
| 設計資源： | Converting a Single-Ended Signal with AD7982 Differential PulSAR ADC (CN0032) Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033) |
| 標準包裝： | 98 |
| 類型： | ADC 驅(qū)動器 |
| 應用： | 數(shù)據(jù)采集 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 768 (CN2011-ZH PDF) |
ADA4941-1
Rev. C | Page 3 of 24
SPECIFICATIONS
TA = 25°C, VS = 3 V, OUT+ connected to FB (G = 2), RL,dm = 1 k, REF = 1.5 V, unless otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Bandwidth
VO = 0.1 V p-p
21
30
MHz
VO = 2.0 V p-p
4.6
6.5
MHz
Overdrive Recovery Time
+Recover/Recovery
320/650
ns
Slew Rate
VO = 2 V step
22
V/s
Settling Time 0.005%
VO = 2 V p-p step
300
ns
NOISE/DISTORTION PERFORMANCE
Harmonic Distortion
fC = 40 kHz, VO = 2 V p-p, HD2/HD3
116/112
dBc
fC = 100 kHz, VO = 2 V p-p, HD2/HD3
101/98
dBc
fC = 1 MHz, VO = 2 V p-p, HD2/HD3
75/71
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
2.00
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
1.9
V
Common-Mode Rejection Ratio (CMRR)
CMRR = VOS,dm/VCM, VREF = VIN, VCM = 0.2 V to 1.9V, G = 4
81
105
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each single-ended output, G = 4
±2.90
±2.95
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
2.2
2.4
mA
Quiescent Current—Disable
10
16
A
Power Supply Rejection Ratio (PSRR)
+PSRR
PSRR = VOS, dm/ΔVS, G = 4
86
100
dB
PSRR
86
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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