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3
LT685
685fa
ELECTRICAL CHARACTERISTICS
LT685C
LT685M
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
VOS
Input Offset Voltage
TA = 25°C
1.0
±2.0
1.0
±2.0
mV
±2.5
±3.0
mV
dVOS/dT
Input Offset Voltage Drift
(Note 3)
±10
V/°C
lOS
Input Offset Current
TA = 25°C
0.3
±1.0
0.3
±1.0
A
±1.3
±1.6
A
IB
Input Bias Current
TA= 25°C5
10
510
A
13
16
A
RIN
Input Resistance
TA = 25°C (Note 3)
6.0
k
CIN
Input Capacitance
TA = 25°C (Note 3)
3.0
pF
VCM
lnput Voltage Range
±3.3
V
CMRR
Common Mode Rejection
80
dB
SVRR
Supply Voltage Rejection
70
dB
VOH
Output High Voltage
TA = 25°C– 0.960
–0.810
–0.960
–0.810
V
TA = TMIN
–1.060
–0.890
–1.100
–0.920
V
TA = TMAX
– 0.890
–0.700
–0.850
–0.620
V
VOL
Output Low Voltage
TA = 25°C
–1.850
–1.650
–1.850
–1.650
V
TA = TMIN
–1.890
–1.675
–1.910
–1.690
V
TA = TMAX
–1.825
–1.625
–1.810
–1.575
V
I+
Positive Supply Current
22
mA
I–
Negative Supply Current
26
mA
PDISS
Power Dissipation
300
mW
V+ = 6.0V, V– = –5.2V, VT = –2V, RL = 50, R = ∞ over the operating temp-
erature ranges, unless otherwise noted.