Datasheet

3
LT1078/LT1079
10789fe
ELECTRICAL CHARACTERISTICS
V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, T
A
= 25°C unless otherwise noted.
LT1078C/LT1079C
LT1078I/LT1079I
LT1078AC/LT1079AC LT1078M/LT1079M
LT1078AM/LT1079AM LT1078S8/LT1079SW
SYMBOL PARAMETER CONDITIONS (NOTE 2) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1078 30 70 40 120 µV
LT1078IS8/LT1078S8 60 180 µV
LT1079 35 100 40 150 µV
LT1079ISW/LT1079SW 60 300 µV
∆V
OS
Long Term Input Offset 0.4 0.5 µV/Mo
∆Time Voltage Stability
I
OS
Input Offset Current 0.05 0.25 0.05 0.35 nA
I
B
Input Bias Current 6 8 6 10 nA
e
n
Input Noise Voltage 0.1Hz to 10Hz (Note 3) 0.6 1.2 0.6 µV
P-P
Input Noise Voltage Density f
O
= 10Hz (Note 3) 29 45 29 nV√Hz
f
O
= 1000Hz (Note 3) 28 37 28 nV√Hz
i
n
Input Noise Current 0.1Hz to 10Hz (Note 3) 2.3 4.0 2.3 pA
P-P
Input Noise Current Density f
O
= 10Hz (Note 3) 0.06 0.10 0.06 pA√Hz
f
O
= 1000Hz 0.02 0.02 pA√Hz
Input Resistance (Note 4)
Differential Mode 400 800 300 800 MΩ
Common Mode 6 6 GΩ
Input Voltage Range 3.5 3.8 3.5 3.8 V
0 –0.3 0 –0.3 V
CMRR Common Mode Rejection Ratio V
CM
= 0V to 3.5V 97 110 94 108 dB
PSRR Power Supply Rejection Ratio V
S
= 2.3V to 12V 102 114 100 114 dB
A
VOL
Large-Signal Voltage Gain V
O
= 0.03V to 4V, No Load 200 1000 150 1000 V/mV
V
O
= 0.03V to 3.5V, R
L
= 50k 150 600 120 600 V/mV
Maximum Output Voltage Output Low, No Load 3.5 6 3.5 6 mV
Swing Output Low, 2k to GND 0.55 1.0 0.55 1.0 mV
Output Low, I
SINK
= 100µA 95 130 95 130 mV
Output High, No Load 4.2 4.4 4.2 4.4 V
Output High, 2k to GND 3.5 3.9 3.5 3.9 V
SR Slew Rate A
V
= 1, V
S
= ±2.5V 0.04 0.07 0.04 0.07 V/µs
GBW Gain Bandwidth Product f
O
≤ 20kHz 200 200 kHz
I
S
Supply Current per Amplifier 38 50 39 55 µA
Channel Separation ∆V
IN
= 3V, R
L
= 10k 130 130 dB
Minimum Supply Voltage (Note 5) 2.2 2.3 2.2 2.3 V