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ManualsBrandsLINEAR TECHNOLOGY ManualsLinear ICsLinear IC - Amplifier - Video buffering 40 MHz SOIC 14
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7
LT1251/LT1256
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Input Common Mode Range
vs Temperature
Control and Full-Scale Amp Input
Bias Current vs Input Voltage
NULL VOLTAGE, REFERENCED TO V
–
(mV)
02040
INVERTING INPUT BIAS CURRENT (µA)
60 100 12080
140
160
1251/56 G24
200
150
100
50
0
–50
–100
–150
–200
T
A
= –55°C
T
A
= 125°C
V
S
= ±5V
V
FS
= 1.25V
T
A
= 25°C
Inverting Input Bias Current
vs Null Voltage
Inverting Input Bias Current
vs Null Voltage
NULL VOLTAGE, REFERENCED TO V
–
(mV)
050
INVERTING INPUT BIAS CURRENT (µA)
100 200150
250
300
1251/56 G23
400
300
200
100
0
–100
–200
–300
–400
T
A
= –55°C
T
A
= 125°C
V
S
= ±5V
V
FS
= 2.5V
T
A
= 25°C
Positive Output Saturation
Voltage vs Load Current
LOAD CURRENT (mA)
0
SATURATION VOLTAGE, V
+
– V
OUT
(V)
10
20
30
40
1251/56 G26
1.7
1.5
1.3
1.1
0.9
0.7
0.5
T
A
= –55°C
T
A
= 125°C
V
S
= ±5V
T
A
= 25°C
Negative Output Saturation
Voltage vs Load Current
3.0
2.5
2.0
1.5
1.0
0.5
1251/56 G27
LOAD CURRENT (mA)
0
SATURATION VOLTAGE, V
OUT
– V
–
(V)
–10 –20
–30 –40
T
A
= –55°C
T
A
= 125°C
V
S
= ±5V
T
A
= 25°C
Output Short-Circuit Current
vs Temperature
TEMPERATURE (°C)
–50
OUTPUT SHORT-CIRCUIT CURRENT (mA)
60
50
40
30
25 75
1251/56 G28
–25 0
50 100 125
Supply Current vs
Full-Scale Voltage
Supply Current vs
Full-Scale Current
INPUT VOLTAGE (V)
0
INPUT BIAS CURRENT (nA)
3
5
1251/56 G25
12 4
–400
–350
–300
–250
–200
–150
–100
–50
0
T
A
= –55°C
T
A
= 125°C
V
S
≥ ±7.5V
T
A
= 25°C
FULL-SCALE VOLTAGE, V
FS
(V)
0
14
12
10
8
6
4
2
0
1.5
1251/56 G20
0.5 1.0 2.0 2.5
SUPPLY CURRENT (mA)
V
S
= ±5V
INTERNAL RESISTORS
T
A
= –55°C,
T
A
= 25°C
T
A
= 125°C
FULL-SCALE CURRENT, I
FS
(µA)
0
SUPPLY CURRENT (mA)
14
12
10
8
6
4
2
0
1251/56 G21
200
500
100
300 400
V
S
= ±5V
V
C
= 0V
T
A
= –55°C
T
A
= 125°C