参数资料
型号: ADA4940-1ARZ-RL
厂商: Analog Devices Inc
文件页数: 29/33页
文件大小: 0K
描述: IC DIFF ADC DVR 18BIT LN 8SOIC
标准包装: 2,500
放大器类型: 差分
电路数: 1
输出类型: 差分
转换速率: 95 V/µs
-3db带宽: 260MHz
电流 - 输入偏压: 1.1µA
电压 - 输入偏移: 60µV
电流 - 电源: 1.25mA
电流 - 输出 / 通道: 46mA
电压 - 电源,单路/双路(±): 3 V ~ 6 V
工作温度: -40°C ~ 125°C
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)
ADA4940-1/ADA4940-2
Data Sheet
Rev. C | Page 4 of 32
SPECIFICATIONS
VS = 5 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 3.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Small Signal Bandwidth
VOUT, dm = 0.1 V p-p, G = 1
260
MHz
VOUT, dm = 0.1 V p-p, G = 2
220
MHz
VOUT, dm = 0.1 V p-p, G = 5
75
MHz
3 dB Large Signal Bandwidth
VOUT, dm = 2 V p-p, G = 1
25
MHz
VOUT, dm = 2 V p-p, G = 2
22
MHz
VOUT, dm = 2 V p-p, G = 5
19
MHz
Bandwidth for 0.1 dB Flatness
VOUT, dm = 2 V p-p, G = 1 and G = 2
14.5
MHz
Slew Rate
VOUT, dm = 2 V step
95
V/s
Settling Time to 0.1%
VOUT, dm = 2 V step
34
ns
Overdrive Recovery Time
G = 2, VIN, dm = 6 V p-p, triangle wave
86
ns
NOISE/HARMONIC PERFORMANCE
HD2/HD3
VOUT, dm = 2 V p-p, fC = 10 kHz
125/118
dBc
VOUT, dm = 2 V p-p, fC = 50 kHz
123/126
dBc
VOUT, dm = 2 V p-p, fC = 50 kHz, G = 2
124/117
dBc
VOUT, dm = 2 V p-p, fC = 1 MHz
102/96
dBc
VOUT, dm = 2 V p-p, fC = 1 MHz, G = 2
100/–92
dBc
IMD3
VOUT, dm = 2 V p-p, f1 = 1.9 MHz, f2 = 2.1 MHz
99
dBc
Input Voltage Noise
f = 100 kHz
3.9
nV/√Hz
Input Current Noise
f = 100 kHz
0.81
pA/√Hz
Crosstalk
VOUT, dm = 2 V p-p, fC = 1 MHz
110
dB
INPUT CHARACTERISTICS
Input Offset Voltage
VIP = VIN = VOCM = 0 V
0.35
±0.06
+0.35
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 = ±1 V dc
86
119
dB
Open-Loop Gain
91
99
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Each single-ended output
VS + 0.1 to
+VS 0.1
VS + 0.07 to
+VS 0.07
V
Linear Output Current
f = 1 MHz, RL, dm = 22 , SFDR = 60 dBc
46
mA peak
Output Balance Error
f = 1 MHz, ΔVOUT, cm/ΔVOUT, dm
65
60
dB
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