LT1466L Datasheet, PDF (1/12 Pages) Linear Technology – Micropower Dual/Quad Precision Rail-to-Rail Input and Output Op Amps

LT1466L/LT1467L
Micropower Dual/Quad
Precision Rail-to-Rail Input
and Output Op Amps
FEATURES
s _{Rail-to-Rail Input and Output}
s _{Low Supply Current: 75µA Max}
s _{390µV VOS(MAX) for VCM = V} ^– _{to V} ⁺
s _{High Common Mode Rejection Ratio: 83dB Min}
s _{High AVOL: 400V/mV Min}
s _{Wide Supply Range: 2V to ±5V}
s _{Low Input Bias Current: 6nA Typ}
s _{120kHz Gain Bandwidth Product}
U
APPLICATIONS
s _{Supply Current Sensing}
s _{Driving A/D Converters}
s _{Test Equipment Amplifiers}
DESCRIPTION
The LT^®1466L/LT1467L are dual/quad bipolar op amps
that combine rail-to-rail input and output operation with
precision specifications. Using a patented technique,
both input stages of the LT1466L/LT1467L are trimmed:
one at the negative supply and the other at the positive
supply. The resulting common mode rejection of 83dB
minimum is much better than other rail-to-rail input op
amps. A minimum open-loop gain of 400V/mV into a 10k
load virtually eliminates all gain error. Operation is speci-
fied for 3V, 5V and ± 5V supplies.
Unlike other rail-to-rail amplifiers, the input offset voltage
of 390µV maximum is guaranteed across the entire rail-to-
rail input range, not just at half supply. The graph below
contrasts the V_OS specifications of the LT1466L/LT1467L
to a competitive part that is specified only at half supply.
As can be seen, the LT1466L/LT1467L’s limits are much
tighter for inputs near either supply.
The LT1466L is available in 8-lead PDIP and SO-8 pack-
ages with the standard dual pinout. The LT1467L features
the standard quad pinout and is available in a 16-lead
narrow SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Variable Current Source
V_CC
V_IN
0V TO 2.5V
+
1/2 LT1466L
–
R3
R2
5.1Ω
10k
+
VN2222 10k 1/2 LT1466L
–
R1
( ) ( ) ^{IO = VIN}
R2
R1
1
R3
100k
( ) = VIN
51Ω
TP0610
I_O
1466L/67L TA01
Worst-Case V_OS
vs Input Common Mode Voltage
2000
1000
TYPICAL RAIL-TO-RAIL
AMPLIFIER (65dB CMRR)
0
LT1467L LIMITS
–1000
– 2000
0
1
2
3
4
5
INPUT COMMON MODE VOLTAGE (V)
1466L/67L TA02
1