LT1251 Linear Technology, LT1251 Datasheet - Page 3

• Manufacturer Part Number: LT1251
• Description: 40MHz Video Fader and DC Gain Controlled Amplifier
• Manufacturer: Linear Technology

SIG AL A PLIFIER AC CHARACTERISTICS
SIG AL A PLIFIER DC CHARACTERISTICS
SYMBOL
SR
BW
THD
t
OS
t
t
0 C T
SYMBOL
V
I
I
e
+i
–i
R
C
CMRR
PSRR
0 C T
unless otherwise noted.
S
IN
IN
r
PD
n
OS
IN
, t
IN
n
n
+
–
f
U
U
A
A
PARAMETER
Gain Supply Rejection
External Resistor Gain
50% Input 1
Slew Rate
Control Feedthrough
Full Power Bandwidth
Small-Signal Bandwidth
Differential Gain (Notes 4,5)
Differential Phase (Notes 4,5)
Total Harmonic Distortion
Rise Time, Fall Time
Overshoot
Propagation Delay
Settling Time
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
Noninverting Input Bias Current
Inverting Input Bias Current
Inverting Input Bias Current Null Change
Input Noise Voltage Density
Noninverting Input Noise Current Density
Inverting Input Noise Current Density
Input Resistance
Input Capacitance
Input Voltage Range
Common Mode Rejection Ratio
Inverting Input Current Common Mode Rejection
Power Supply Rejection Ratio
Noninverting Input Current Power Supply Rejection
Inverting Input Current Power Supply Rejection
70 C, V
70 C, V
W
W
S
S
= 5V, V
= 5V, V
CM
IN
= 1V
= 0V, V
RMS
FS
, f = 1kHz, A
= 2.5V, I
CONDITIONS
V
Pins 5,10 = Open, External 5k Resistors
from Pins 4,11 to Ground, V
V
V
V
V
V
Control = 0% or 100%
Control = 25% or 75%
Control = 0% or 100%
Control = 25% or 75%
Gain = 100%
Gain = 50%
Gain = 10%
10% to 90%, V
V
V
0.1%, V
C
IN
C
O
S
S
O
O
= 1.25V, V
= 1.25VDC + 2.5V
= 5V
= 15V
= 1V
= 100mV
= 100mV
= 2.5V, V
C
VMAX
= I
RMS
O
FS
= 2V
= 1, R
= NULL = Open, Pins 5,10 = GND, unless otherwise noted.
S
CONDITIONS
Either Input
Difference Between Inputs
Either Input
Either Input
Difference Between Inputs
Null (Pin 6) Open to V
f = 1kHz
f = 1kHz
f = 1kHz
Either Noninverting Input
Either Noninverting Input
V
V
V
V
V
V
V
V
V
O
= 5V to 15V
O
S
S
CM
S
CM
S
S
S
S
at 2V, R
= 100mV
= 5V
= 5V
= 5V, V
= 5V, V
= 5V to 15V
= 5V to 15V
= 5V to 15V
= – 3V to 3V
= – 3V to 3V
F1
P-P
= R
at 1kHz
CM
CM
L
F2
= 150
= 2V to 3V, V
= 2V to 3V, V
C
= 1.5k, V
= 1.25V
–
FS
O
O
= 2.5V, I
= 2.5V
= 2.5V
C
= I
FS
= NULL = Open, Pins 5,10 = GND,
– 280
– 2.5
MIN
MIN
150
– 30
– 3
45
55
50
70
– 1
5
3
2
LT1251/LT1256
– 170
0.03
0.02
0.90
0.02
0.55
0.002
0.015
0.4
0.07
0.17
TYP
TYP
300
2.5
0.5
2.7
1.5
1.5
20
30
40
11
10
65
10
10
29
17
61
57
76
30
30
3.2
3
2
1
0.5
MAX
MAX
0.10
0.25
0.70
– 60
100
200
2.5
55
30
5
3
3
1
nV/ Hz
pA/ Hz
pA/ Hz
UNITS
UNITS
mV
nA/V
nA/V
3
V/ s
V/ C
%/V
MHz
MHz
MHz
DEG
DEG
A/ V
A/ V
M
mV
mV
P-P
dB
dB
dB
pF
ns
ns
ns
%
%
%
%
%
%
%
A
A
A
A
V
V