Datasheet

LT1782
3
1782fc
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 3V, 0V; V
S
= 5V, 0V, V
CM
= V
OUT
= half supply, for the 6-lead part
V
PIN5
= 0V, pulse power tested unless otherwise specified.
SYMBOL PARAMETER CONDITIONS
LT1782C/LT1782I
UNITSMIN TYP MAX
V
OS
Input Offset Voltage T
A
= 25°C
0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
400 800
950
1100
µV
µV
µV
∆V
OS
/∆T
Input Offset Voltage Drift (Note 7)
l
2 5 µV/°C
I
OS
Input Offset Current
V
CM
= 18V (Note 5)
l
l
0.7 2
1
nA
µA
I
B
Input Bias Current
V
CM
= 18 (Note 5)
SHDN or V
S
= 0V, V
CM
= 0V to 18V
l
l
8
6
0.1
15
12
nA
µA
nA
Input Bias Current Drift –40°C ≤ T
A
≤ 85°C
l
0.01 nA/°C
Input Noise Voltage 0.1Hz to 10Hz 1 µV
P-P
e
n
Input Noise Voltage Density f = 1kHz 50 nV/√Hz
i
n
Input Noise Current Density f = 1kHz 0.05 pA/√Hz
R
IN
Input Resistance Differential
Common Mode, V
CM
= 0V to (V
CC
– 1V)
Common Mode, V
CM
= 0V to 18V
l
l
3.4
1.5
6.5
5
3
MΩ
GΩ
MΩ
C
IN
Input Capacitance 5 pF
Input Voltage Range
l
0 18 V
CMRR Common Mode Rejection Ratio
(Note 5)
V
CM
= 0V to V
CC
– 1V
V
CM
= 0V to 18V (Note 8)
l
l
90
68
100
80
dB
dB
PSRR Power Supply Rejection Ratio V
S
= 3V to 12.5V, V
CM
= V
O
= 1V l 90 100 dB
A
VOL
Large-Signal Voltage Gain V
S
= 3V, V
O
= 500mV to 2.5V, R
L
= 10k
V
S
= 3V, 0°C ≤ T
A
≤ 70°C
V
S
= 3V, –40°C ≤ T
A
≤ 85°C
l
l
200
133
100
1500 V/mV
V/mV
V/mV
V
S
= 5V, V
O
= 500mV to 4.5V, R
L
= 10k
V
S
= 5V, 0°C ≤ T
A
≤ 70°C
V
S
= 5V, –40°C ≤ T
A
≤ 85°C
l
l
400
250
200
500 V/mV
V/mV
V/mV
V
OL
Output Voltage Swing LOW No Load
I
SINK
= 5mA
V
S
= 5V, I
SINK
= 10mA
l
l
l
3
200
400
8
500
800
mV
mV
mV
V
OH
Output Voltage Swing HIGH V
S
= 3V, No Load
V
S
= 3V, I
SOURCE
= 5mA
l
l
2.91
2.6
2.94
2.8
V
V
V
S
= 5V, No Load
V
S
= 5V, I
SOURCE
= 10mA
l
l
4.91
4.5
4.94
4.74
V
V
I
SC
Short-Circuit Current (Note 2) V
S
= 3V, Short to GND
V
S
= 3V, Short to V
CC
5
15
10
30
mA
mA
V
S
= 5V, Short to GND
V
S
= 5V, Short to V
CC
15
20
30
40
mA
mA
Minimum Supply Voltage
l
2.7 V
Reverse Supply Voltage I
S
= –100µA
l
18 V
I
S
Supply Current
(Note 6) 0°C ≤ T
A
≤ 70°C
–40°C ≤ T
A
≤ 85°C
l
l
40 55
60
65
µA
µA
µA
Supply Current, SHDN V
PIN5
= 2V, No Load (Note 10)
l
5 15 µA