LT1466L/LT1467L
Micropower Dual/Quad
Precision Rail-to-Rail Input
and Output Op Amps
FEATURES
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s
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s
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DESCRIPTION
The LT
廬
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
鹵
5V supplies.
Unlike other rail-to-rail amplifiers, the input offset voltage
of 390碌V 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鈥檚 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.
Rail-to-Rail Input and Output
Low Supply Current: 75
碌
A Max
390
碌
V V
OS(MAX)
for V
CM
= V
鈥?/div>
to V
+
High Common Mode Rejection Ratio: 83dB Min
High A
VOL
: 400V/mV Min
Wide Supply Range: 2V to
鹵5V
Low Input Bias Current: 6nA Typ
120kHz Gain Bandwidth Product
APPLICATIONS
s
s
s
Supply Current Sensing
Driving A/D Converters
Test Equipment Amplifiers
TYPICAL APPLICATION
Variable Current Source
V
CC
2000
R2
10k
V
IN
0V TO 2.5V
R3
5.1鈩?/div>
INPUT OFFSET VOLTAGE (碌V)
1000
+
1/2 LT1466L
VN2222
10k
+
1/2 LT1466L
TP0610
0
鈥?/div>
鈥?/div>
R2
I
O
= V
IN
R1
V
IN
=
51鈩?/div>
鈥?000
R1
100k
( )( )
( )
1
R3
I
O
鈥?000
0
1466L/67L TA01
U
U
U
Worst-Case V
OS
vs Input Common Mode Voltage
TYPICAL RAIL-TO-RAIL
AMPLIFIER (65dB CMRR)
LT1467L LIMITS
2
3
1
4
INPUT COMMON MODE VOLTAGE (V)
5
1466L/67L TA02
1
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