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LT1499CS Datasheet Download

Part No.:
LT1499CS
Download:
Download Datasheet
Description:
[10MHz, 6V/us, Dual/Quad Rail-to-Rail Input and Output Precision C-Load Op Amps]
File Size:
380 K
Page:
16 Pages
Logo:
Manufacturer:
LINER [ LINEAR TECHNOLOGY ]
PCB Prototype
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LT1498/LT1499
10MHz, 6V/µs, Dual/Quad
Rail-to-Rail Input and Output
Precision C-Load Op Amps
FEATURES
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DESCRIPTION
The LT
®
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/µs 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
±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
–10
– 20
– 30
GAIN (dB)
6.81k
100pF
5.23k
47pF
V
+
Rail-to-Rail Input and Output
475µV Max V
OS
from V
+
to V
Gain-Bandwidth Product: 10MHz
Slew Rate: 6V/µs
Low Supply Current per Amplifier: 1.7mA
Input Offset Current: 50nA Max
Input Bias Current: 500nA Max
Open-Loop Gain: 1000V/mV Min
Low Input Noise Voltage: 12nV/√Hz Typ
Wide Supply Range: 2.2V to
±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
APPLICATIONS
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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 APPLICATION
Single Supply 100kHz 4th Order Butterworth Filter
V
IN
330pF
1/2 LT1498
1000pF
V
+
/2
+
+
6.81k
11.3k
5.23k
10.2k
1/2 LT1498
V
OUT
–100
1498 TA01
–110
100
U
U
U
V
IN
= 2.7V
P-P
V
+
= 3V
– 40
– 50
– 60
–70
– 80
– 90
1k
100k
10k
FREQUENCY (Hz)
1M
10M
1498 TA02
1