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參數(shù)資料
| 型號： | ADA4938-2ACPZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 24/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC DRIVER DUAL DIFF 24LFCSP |
| 標(biāo)準(zhǔn)包裝： | 5,000 |
| 類型： | ADC 驅(qū)動器 |
| 應(yīng)用： | 數(shù)據(jù)采集 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 24-LFCSP-VQ（4x4） |
| 包裝： | 帶卷 (TR) |
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ADA4938-1/ADA4938-2
Rev. A | Page 5 of 28
SINGLE-SUPPLY OPERATION
TA = 25°C, +VS = 5 V, VS = 0 V, VOCM = +VS/2, RT = 61.9 Ω, RG = RF = 200 Ω, G = +1, RL, dm = 1 kΩ, unless otherwise noted.
All specifications refer to single-ended input and differential output, unless otherwise noted. For gains other than G = 1, values for RF and
±DIN to ±OUT Performance
Table 3.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Small Signal Bandwidth
VOUT = 0.1 V p-p
1000
MHz
Bandwidth for 0.1 dB Flatness
VOUT = 2 V p-p
150
MHz
Large Signal Bandwidth
VOUT = 2 V p-p
750
MHz
Slew Rate
VOUT = 2 V p-p
3900
V/μs
Settling Time
VOUT = 2 V p-p
6.5
ns
Overdrive Recovery Time
VIN = 2.5 V to 0 V step, G = +2
4
ns
NOISE/HARMONIC PERFORMANCE
Second Harmonic
VOUT = 2 V p-p, 10 MHz
110
dBc
VOUT = 2 V p-p, 50 MHz
79
dBc
Third Harmonic
VOUT = 2 V p-p, 10 MHz
100
dBc
VOUT = 2 V p-p, 50 MHz
79
dBc
Input Voltage Noise
f = 10 MHz
2.6
nV/√Hz
Noise Figure
G = +4, f = 10 MHz
15.8
dB
Input Current Noise
f = 10 MHz
4.8
pA/√Hz
Crosstalk (ADA4938-2)
f = 100 MHz
85
dB
INPUT CHARACTERISTICS
Offset Voltage
VOS, dm = VOUT, dm/2; VDIN+ = VDIN = VOCM = 2.5 V
1
4
mV
TMIN to TMAX variation
±4
μV/°C
Input Bias Current
18
13
μA
TMIN to TMAX variation
0.01
μA/°C
Input Resistance
Differential
6
MΩ
Common mode
3
MΩ
Input Capacitance
1
pF
Input Common-Mode Voltage
VS + 0.3 to +VS 1.6
V
CMRR
VOUT, dm/VIN, cm; VIN, cm = ±1 V
80
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Maximum VOUT; single-ended output
VS + 1.2 to +VS 1.2
V
Linear Output Current
Per amplifier, RL, dm = 20 Ω, f = 10 MHz
±65
mA
Output Balance Error
VOUT, cm/VOUT, dm; VOUT, dm = 1 V
60
dB
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