参数资料
型号: ADA4857-1YRZ
厂商: Analog Devices Inc
文件页数: 14/20页
文件大小: 0K
描述: IC OPAMP VF ULDIST LP LN 8SOIC
标准包装: 98
放大器类型: 电压反馈
电路数: 1
转换速率: 2800 V/µs
-3db带宽: 850MHz
电流 - 输入偏压: 2µA
电压 - 输入偏移: 2000µV
电流 - 电源: 5mA
电流 - 输出 / 通道: 50mA
电压 - 电源,单路/双路(±): 4.5 V ~ 10.5 V,±2.25 V ~ 5.25 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: 管件
产品目录页面: 768 (CN2011-ZH PDF)
Data Sheet
ADA4857-1/ADA4857-2
Rev. C | Page 3 of 20
SPECIFICATIONS
±5 V SUPPLY
TA = 25°C, G = +2, RG = RF = 499 , RS = 100 for G = +1 (SOIC), RL = 1 k to ground, PD = no connect, unless otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
–3 dB Bandwidth (LFCSP/SOIC)
G = +1, VOUT = 0.2 V p-p
650
850/750
MHz
G = +1, VOUT = 2 V p-p
600/550
MHz
G = +2, VOUT = 0.2 V p-p
400/350
MHz
Full Power Bandwidth
G = +1, VOUT = 2 V p-p, THD < 40 dBc
110
MHz
Bandwidth for 0.1 dB Flatness (LFCSP/SOIC)
G = +2, VOUT = 2 V p-p, RL = 150
75/90
MHz
Slew Rate (10% to 90%)
G = +1, VOUT = 4 V step
2800
V/s
Settling Time to 0.1%
G = +2, VOUT = 2 V step
15
ns
NOISE/HARMONIC PERFORMANCE
Harmonic Distortion
f = 1 MHz, G = +1, VOUT = 2 V p-p (HD2)
108
dBc
f = 1 MHz, G = +1, VOUT = 2 V p-p (HD3)
108
dBc
f = 10 MHz, G = +1, VOUT = 2 V p-p (HD2)
88
dBc
f = 10 MHz, G = +1, VOUT = 2 V p-p (HD3)
93
dBc
f = 50 MHz, G = +1, VOUT = 2 V p-p (HD2)
65
dBc
f = 50 MHz, G = +1, VOUT = 2 V p-p (HD3)
62
dBc
Input Voltage Noise
f = 100 kHz
4.4
nV/√Hz
Input Current Noise
f = 100 kHz
1.5
pA/√Hz
DC PERFORMANCE
Input Offset Voltage
±2
±4.5
mV
Input Offset Voltage Drift
2.3
V/°C
Input Bias Current
2
3.3
A
Input Bias Current Drift
24.5
nA/°C
Input Bias Offset Current
50
nA
Open-Loop Gain
VOUT = 2.5 V to +2.5 V
57
dB
PD (POWER-DOWN) PIN
PD Input Voltage
Chip powered down
≥(VCC 2)
V
Chip enabled
≤(VCC 4.2)
V
Turn-Off Time
50% off PD to <10% of final VOUT, VIN = 1 V, G = +2
55
s
Turn-On Time
50% off PD to <10% of final VOUT, VIN = 1 V, G = +2
33
ns
PD Pin Leakage Current
Chip enabled
58
A
Chip powered down
80
A
INPUT CHARACTERISTICS
Input Resistance
Common mode
8
M
Differential mode
4
M
Input Capacitance
Common mode
2
pF
Input Common-Mode Voltage Range
±4
V
Common-Mode Rejection Ratio
VCM = ±1 V
78
86
dB
OUTPUT CHARACTERISTICS
Output Overdrive Recovery Time
VIN = ±2.5 V, G = +2
10
ns
Output Voltage Swing
RL = 1 k
±4
V
RL = 100
±3.7
V
Output Current
50
mA
Short-Circuit Current
Sinking and sourcing
125
mA
Capacitive Load Drive
30% overshoot, G = +2
10
pF
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