参数资料
型号: LT1256CS#TRPBF
厂商: Linear Technology
文件页数: 18/24页
文件大小: 0K
描述: IC AMP VIDEO FADE CONTRLD 14SOIC
标准包装: 2,500
应用: 电流反馈
电路数: 1
-3db带宽: 40MHz
转换速率: 300 V/µs
电流 - 电源: 14.5mA
电流 - 输出 / 通道: 40mA
电压 - 电源,单路/双路(±): 5 V ~ 30 V,±2.5 V ~ 15 V
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 带卷 (TR)
3
LT1251/LT1256
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Gain Supply Rejection
VC = 1.25V, VS = ±5V to ±15V
q
0.03
0.10
%/V
External Resistor Gain
Pins 5,10 = Open, External 5k Resistors
q
45
55
%
50% Input 1
from Pins 4,11 to Ground, VC = 1.25V
SR
Slew Rate
VIN = ±2.5V, VO at ±2V, RL = 150
q
150
300
V/
s
Control Feedthrough
VC = 1.25VDC + 2.5VP-P at 1kHz
2.5
mVP-P
Full Power Bandwidth
VO = 1VRMS
20
MHz
BW
Small-Signal Bandwidth
VS = ±5V
30
MHz
VS = ±15V
40
MHz
Differential Gain (Notes 4,5)
Control = 0% or 100%
0.02
%
Control = 25% or 75%
0.90
%
Differential Phase (Notes 4,5)
Control = 0% or 100%
0.02
DEG
Control = 25% or 75%
0.55
DEG
THD
Total Harmonic Distortion
Gain = 100%
0.002
%
Gain = 50%
0.015
%
Gain = 10%
0.4
%
tr, tf
Rise Time, Fall Time
10% to 90%, VO = 100mV
11
ns
OS
Overshoot
VO = 100mV
3
%
tPD
Propagation Delay
VO = 100mV
10
ns
tS
Settling Time
0.1%,
VO = 2V
65
ns
SIG AL A PLIFIER AC CHARACTERISTICS
U
W
0
°C ≤ TA ≤ 70°C, VS = ±5V, VIN = 1VRMS, f = 1kHz, AVMAX = 1, RF1 = RF2 = 1.5k, VFS = 2.5V, IC = IFS = NULL = Open, Pins 5,10 = GND,
unless otherwise noted.
SIG AL A PLIFIER DC CHARACTERISTICS
U
W
0
°C ≤ TA ≤ 70°C, VS = ±5V, VCM = 0V, VFS = 2.5V, IC = IFS = NULL = Open, Pins 5,10 = GND, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
Either Input
q
25
mV
Difference Between Inputs
q
–3
1
3
mV
Input Offset Voltage Drift
10
V/°C
IIN
+
Noninverting Input Bias Current
Either Input
q
– 2.5
0.5
2.5
A
IIN–
Inverting Input Bias Current
Either Input
q
–30
10
30
A
Difference Between Inputs
q
– 1
0.5
1
A
Inverting Input Bias Current Null Change
Null (Pin 6) Open to V
q
– 280
– 170
– 60
A
en
Input Noise Voltage Density
f = 1kHz
2.7
nV/
√Hz
+in
Noninverting Input Noise Current Density
f = 1kHz
1.5
pA/
√Hz
–in
Inverting Input Noise Current Density
f = 1kHz
29
pA/
√Hz
RIN
Input Resistance
Either Noninverting Input
q
517
M
CIN
Input Capacitance
Either Noninverting Input
q
1.5
pF
Input Voltage Range
VS = ±5V
q
±3
±3.2
V
VS = 5V
q
2
3
V
CMRR
Common Mode Rejection Ratio
VCM = – 3V to 3V
q
55
61
dB
VS = 5V, VCM = 2V to 3V, VO = 2.5V
q
50
57
dB
Inverting Input Current Common Mode Rejection
VCM = – 3V to 3V
q
0.07
0.25
A/V
VS = 5V, VCM = 2V to 3V, VO = 2.5V
q
0.17
0.70
A/V
PSRR
Power Supply Rejection Ratio
VS = ±5V to ±15V
q
70
76
dB
Noninverting Input Current Power Supply Rejection
VS = ±5V to ±15V
q
30
100
nA/V
Inverting Input Current Power Supply Rejection
VS = ±5V to ±15V
q
30
200
nA/V
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