LT1078/LT1079
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TYPICAL PERFORMANCE CHARACTERISTICS
Small-Signal Transient Response
VS = 5V, 0V
Small-Signal Transient Response
VS = ± 2.5V
0V
0.1V
AV = 1
10µs/DIV
AV = 1
L = 15pF
10µs/DIV
CL = 15pF
C
INPUT 50mV TO 150mV
LT1078/79 • TPC24
LT1078/79 • TPC25
Small-Signal Transient Response
VS = ± 15V
0V
AV = 1
10µs/DIV
C
L = 15pF
LT1078/79 • TPC26
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APPLICATIONS INFORMATION
The LT1078/LT1079 devices are fully specified with A full set of specifications is also provided at ±15V supply
V+ = 5V, V– = 0V, VCM = 0.1V. This set of operating voltages for comparison with other devices and for com-
conditions appears to be the most representative for pleteness.
battery-powered micropower circuits. Offset voltage is
Single Supply Operation
internally trimmed to a minimum value at these supply
voltages. When 9V or 3V batteries or ±2.5V dual supplies
are used, bias and offset current changes will be minimal.
Offset voltage changes will be just a few microvolts as
givenbythePSRRandCMRRspecifications.Forexample,
ifPSRR=114dB(=2µV/V), at9Vtheoffsetvoltagechange
will be 8µV. Similarly, VS = ±2.5V, VCM = 0V is equivalent
to a common mode voltage change of 2.4V or a VOS
change of 7µV if CMRR = 110dB (3µV/V).
The LT1078/LT1079 are fully specified for single supply
operation, i.e., when the negative supply is 0V. Input
common mode range goes below ground and the output
swings within a few millivolts of ground while sinking
current. All competing micropower op amps either cannot
swing to within 600mV of ground (OP-20, OP-220, OP-420)
orneedapull-downresistorconnectedtotheoutputtoswing
to ground (OP-90, OP-290, OP-490, HA5141/42/44). This
10
Linear [ Linear ]
