LT1813/LT1814
Dual/Quad 3mA, 100MHz,
750V/µs Operational Amplifiers
FEATURES
■
■
■
■
■
■
■
■
■
■
■
■
■
■
DESCRIPTIO
100MHz Gain Bandwidth Product
750V/µs Slew Rate
3.6mA Maximum Supply Current per Amplifier
Tiny 3mm x 3mm x 0.8mm DFN Package
8nV/√Hz Input Noise Voltage
Unity-Gain Stable
1.5mV Maximum Input Offset Voltage
4µA Maximum Input Bias Current
400nA Maximum Input Offset Current
40mA Minimum Output Current, V
OUT
=
±3V
±3.5V
Minimum Input CMR, V
S
=
±5V
30ns Settling Time to 0.1%, 5V Step
Specified at
±5V,
Single 5V Supplies
Operating Temperature Range: –40°C to 85°C
The LT
®
1813/LT1814 are dual and quad, low power, high
speed, very high slew rate operational amplifiers with
excellent DC performance. The LT1813/LT1814 feature
reduced supply current, lower input offset voltage, lower
input bias current and higher DC gain than other devices
with comparable bandwidth. The circuit topology is a
voltage feedback amplifier with the slewing characteris-
tics of a current feedback amplifier.
The output drives a 100Ω load to
±3.5V
with
±5V
supplies.
On a single 5V supply, the output swings from 1.1V to 3.9V
with a 100Ω load connected to 2.5V. The amplifiers are
stable with a 1000pF capacitive load making them useful
in buffer and cable driver applications.
The LT1813/LT1814 are manufactured on Linear
Technology’s advanced low voltage complementary bipo-
lar process. The LT1813 dual op amp is available in
8-pin MSOP, SO and 3mm x 3mm low profile (0.8mm)
dual fine pitch leadless packages (DFN). The quad LT1814
is available in 14-pin SO and 16-pin SSOP packages. A
single version, the LT1812, is also available (see separate
data sheet).
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
■
■
■
■
■
■
■
Active Filters
Wideband Amplifiers
Buffers
Video Amplification
Communication Receivers
Cable Drivers
Data Acquisition Systems
TYPICAL APPLICATIO
Bandpass Filter with Independently Settable Gain, Q and f
C
R1
R
C
1/4 LT1814
1/4 LT1814
GAIN = R1
R
G
Q = R1
R
Q
f
C
=
1
2πR
F
C
R
C
1/4 LT1814
+
–
–
+
+
–
R
R
F
1/4 LT1814
BANDPASS
OUT
R
F
OUTPUT MAGNITUDE (6dB/DIV)
V
IN
+
–
R
G
R
Q
1814 TA01
U
Filter Frequency Response
0
R = 499Ω
R1 = 499Ω
R
F
= 475Ω
R
Q
= 49.9Ω
R
G
= 499Ω
C = 3.3nF
f
C
= 100kHz
Q = 10
GAIN = 1
V
S
=
±5V
V
IN
= 5V
P-P
DISTORTION:
2nd < –76dB
3rd < –90dB
ACROSS FREQ
RANGE
1k
10k
100k
1M
FREQUENCY (Hz)
10M
1814 TA02
U
U
18134fa
1
LINER [ LINEAR TECHNOLOGY ]
