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參數(shù)資料
型號: ADA4940-2ACPZ-R7
廠商: Analog Devices Inc
文件頁數(shù): 31/33頁
文件大小: 0K
描述: IC DIFF ADC DVR 18BIT LN 24LFCSP
特色產(chǎn)品: ADA4940 Amplifiers
標(biāo)準(zhǔn)包裝: 1
放大器類型: 差分
電路數(shù): 2
輸出類型: 差分
轉(zhuǎn)換速率: 95 V/µs
-3db帶寬: 260MHz
電流 - 輸入偏壓: 1.1µA
電壓 - 輸入偏移: 60µV
電流 - 電源: 1.25mA
電流 - 輸出 / 通道: 46mA
電壓 - 電源,單路/雙路(±): 3 V ~ 7 V
工作溫度: -40°C ~ 125°C
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: 標(biāo)準(zhǔn)包裝
其它名稱: ADA4940-2ACPZ-R7DKR
ADA4940-1/ADA4940-2
Data Sheet
Rev. C | Page 6 of 32
VS = 3 V
VOCM = Mid Supply, RF = RG = 1 k, RL,dm = 1 k, TA = 25°C, LFCSP package, unless otherwise noted. TMIN to TMAX = 40°C to +125°C.
(See Figure 61 for the definition of terms.)
+DIN or
DIN to VOUT,dm Performance
Table 6.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Small Signal Bandwidth
VOUT, dm = 0.1 V p-p
240
MHz
VOUT, dm = 0.1 V p-p, G = 2
200
MHz
VOUT, dm = 0.1 V p-p, G = 5
70
MHz
3 dB Large Signal Bandwidth
VOUT, dm = 2 V p-p
24
MHz
VOUT, dm = 2 V p-p, G = 2
20
MHz
VOUT, dm = 2 V p-p, G = 5
17
MHz
Bandwidth for 0.1 dB Flatness
VOUT, dm = 0.1 V p-p
14
MHz
Slew Rate
VOUT, dm = 2 V step
90
V/s
Settling Time to 0.1%
VOUT, dm = 2 V step
37
ns
Overdrive Recovery Time
G = 2, VIN, dm = 3.6 V p-p, triangle wave
85
ns
NOISE/HARMONIC PERFORMANCE
HD2/HD3
VOUT, dm = 2 V p-p, fC = 50 kHz (HD2/HD3)
115/121
dBc
VOUT, dm = 2 V p-p, fC = 1 MHz (HD2/HD3)
104/96
dBc
IMD3
VOUT,dm = 2 V p-p, f1 = 1.9 MHz, f2 = 2.1 MHz
98
dBc
Input Voltage Noise
f = 100 kHz
3.9
nV/√Hz
Input Current Noise
f = 100 kHz
0.84
pA/√Hz
Crosstalk
VOUT, dm = 2 V p-p, fC = 1 MHz
110
dB
INPUT CHARACTERISTICS
Input Offset Voltage
VIP = VIN = VOCM = 1.5 V
0.4
±0.06
+0.4
mV
Input Offset Voltage Drift
TMIN to TMAX
1.2
V/°C
Input Bias Current
1.6
1.1
A
Input Bias Current Drift
TMIN to TMAX
4.5
nA/°C
Input Offset Current
500
±50
+500
nA
Input Common-Mode Voltage Range
VS 0.2 to
+VS 1.2
V
Input Resistance
Differential
33
k
Common mode
50
M
Input Capacitance
1
pF
Common-Mode Rejection Ratio (CMRR)
ΔVOS, dm/ΔVIN, cm, VIN, cm = ±0.25 V dc
86
114
dB
Open-Loop Gain
91
99
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each single-ended output
VS + 0.08 to
+VS 0.08
VS + 0.04 to
+VS 0.04
V
Linear Output Current
f = 1 MHz, RL, dm = 26 , SFDR = 60 dBc
38
mA peak
Output Balance Error
f = 1 MHz, ΔVOUT, cm/ΔVOUT, dm
65
60
dB
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