Datasheet
3
LT1638/LT1639
16389fc
LT1638C/LT1639C, LT1638I/LT1639I
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1638 N, S Packages 200 600 µV
0°C ≤ T
A
≤ 70°C ● 850 µV
–40°C ≤ T
A
≤ 85°C ● 950 µV
LT1639 N, S Packages 300 700 µV
0°C ≤ T
A
≤ 70°C ● 950 µV
–40°C ≤ T
A
≤ 85°C ● 1050 µV
LT1638 MS8 Package 350 900 µV
0°C ≤ T
A
≤ 70°C ● 1150 µV
–40°C ≤ T
A
≤ 85°C ● 1450 µV
LT1638 DD Package 400 1100 µV
0°C ≤ T
A
≤ 70°C ● 1350 µV
–40°C ≤ T
A
≤ 85°C ● 1450 µV
Input Offset Voltage Drift LT1638/LT1639 N, S Packages ● 26 µV/°C
(Note 9) LT1638MS8, LT1638DD ● 2.5 7 µV/°C
I
OS
Input Offset Current ● 16 nA
V
CM
= 44V (Note 5) ● 2.5 µA
I
B
Input Bias Current ● 20 50 nA
V
CM
= 44V (Note 5) ● 830 µA
V
S
= 0V 0.1 nA
Input Noise Voltage 0.1Hz to 10Hz 1 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 20 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.3 pA/√Hz
R
IN
Input Resistance Differential 1 2.5 MΩ
Common Mode, V
CM
= 0V to 44V 1.4 5.5 MΩ
C
IN
Input Capacitance 5pF
Input Voltage Range ● 044V
CMRR Common Mode Rejection Ratio V
CM
= 0V to V
CC
– 1V ● 88 98 dB
V
CM
= 0V to 44V (Note 8) ● 80 88 dB
A
VOL
Large-Signal Voltage Gain V
S
= 3V, V
O
= 500mV to 2.5V, R
L
= 10k 200 1500 V/mV
0°C ≤ T
A
≤ 70°C ● 133 V/mV
–40°C ≤ T
A
≤ 85°C ● 100 V/mV
V
S
= 5V, V
O
= 500mV to 4.5V, R
L
= 10k 400 1500 V/mV
0°C ≤ T
A
≤ 70°C ● 250 V/mV
–40°C ≤ T
A
≤ 85°C ● 200 V/mV
V
OL
Output Voltage Swing Low V
S
= 3V, No Load ● 38 mV
V
S
= 3V, I
SINK
= 5mA ● 250 450 mV
V
S
= 5V, No Load ● 38 mV
V
S
= 5V, I
SINK
= 10mA ● 500 700 mV
V
OH
Output Voltage Swing High V
S
= 3V, No Load ● 2.94 2.98 V
V
S
= 3V, I
SOURCE
= 5mA ● 2.25 2.40 V
V
S
= 5V, No Load ● 4.94 4.98 V
V
S
= 5V, I
SOURCE
= 10mA ● 3.8 4.0 V
I
SC
Short-Circuit Current (Note 2) V
S
= 3V, Short to GND 10 15 mA
V
S
= 3V, Short to V
CC
15 25 mA
V
S
= 5V, Short to GND 15 20 mA
V
S
= 5V, Short to V
CC
15 25 mA
The ● denotes the specifications which apply over the specified temperature range, otherwise specifications are at T
A
= 25°C.
V
S
= 3V, 0V; V
S
= 5V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted. (Note 4)
ELECTRICAL CHARACTERISTICS