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