鈥?/div>
Gain-Bandwidth Product: 10MHz
Slew Rate: 6V/碌s
Low Supply Current per Amplifier: 1.7mA
Input Offset Current: 65nA Max
Input Bias Current: 650nA Max
Open-Loop Gain: 1000V/mV Min
Low Input Noise Voltage: 12nV/鈭欻z Typ
Wide Supply Range: 2.2V to
鹵15V
Large Output Drive Current: 30mA
Stable for Capacitive Loads Up to 10,000pF
Dual in 8-Pin PDIP and SO Package
Quad in Narrow 14-Pin SO
The LT
廬
1498/LT1499 are dual/quad, rail-to-rail input and
output precision C-Load
TM
op amps with a 10MHz gain-
bandwidth product and a 6V/碌s slew rate.
The LT1498/LT1499 are designed to maximize input
dynamic range by delivering precision performance over
the full supply voltage. Using a patented technique, both
input stages of the LT1498/LT1499 are trimmed, one at the
negative supply and the other at the positive supply. The
resulting guaranteed common mode rejection is much
better than other rail-to-rail input op amps. When used as a
unity-gain buffer in front of single supply 12-bit A-to-D
converters, the LT1498/LT1499 are guaranteed to add less
than 1LSB of error even in single 3V supply systems.
With 110dB of supply rejection, the LT1498/LT1499 main-
tain their performance over a supply range of 2.2V to 36V
and are specified for 3V, 5V and
鹵15V
supplies. The inputs
can be driven beyond the supplies without damage or
phase reversal of the output. These op amps remain stable
while driving capacitive loads up to 10,000pF.
The LT1498 is available with the standard dual op amp
configuration in 8-pin PDIP and SO packaging. The LT1499
features the standard quad op amp configuration and is
available in a 14-pin plastic SO package. These devices can
be used as plug-in replacements for many standard op
amps to improve input/output range and precision.
Frequency Response
10
0
鈥?0
鈥?20
鈥?30
V
IN
= 2.7V
P-P
V
+
= 3V
APPLICATIO S
s
s
s
s
s
Driving A-to-D Converters
Active Filters
Rail-to-Rail Buffer Amplifiers
Low Voltage Signal Processing
Battery-Powered Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Corporation.
TYPICAL APPLICATIO
Single Supply 100kHz 4th Order Butterworth Filter
GAIN (dB)
V
OUT
1498 TA01
6.81k
6.81k
V
IN
330pF
11.3k
100pF
5.23k
47pF
V
+
1/2 LT1498
1000pF
V
+
/2
+
鈥?/div>
5.23k
10.2k
1/2 LT1498
鈥?00
鈥?10
100
1k
100k
10k
FREQUENCY (Hz)
1M
10M
1498 TA02
U
鈥?40
鈥?50
鈥?60
鈥?0
鈥?80
鈥?90
14989fa
U
+
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