LT1814_15 Datasheet, PDF (1/16 Pages) Linear Technology – Dual/Quad 3mA, 100MHz, 750V/s Operational Amplifiers

FEATURES
■ _{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, VOUT = ±3V}
■ _{±3.5V Minimum Input CMR, VS = ±5V}
■ _{30ns Settling Time to 0.1%, 5V Step}
■ _{Specified at ±5V, Single 5V Supplies}
■ _{Operating TempeUrature Range: –40°C to 85°C}
APPLICATIO S
■ _{Active Filters}
■ _{Wideband Amplifiers}
■ _Buffers
■ _{Video Amplification}
■ _{Communication Receivers}
■ _{Cable Drivers}
■ _{Data Acquisition Systems}
LT1813/LT1814
Dual/Quad 3mA, 100MHz,
750V/µs Operational Amplifiers
DESCRIPTIO
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.
TYPICAL APPLICATIO
Bandpass Filter with Independently Settable Gain, Q and f_C
R1
R_G
V_IN
R_Q
–
1/4 LT1814
+
GAIN = ^R1
R_G
Q = ^R1
R_Q
f_C
=
1
2πR_FC
R
R
R
–
1/4 LT1814
+
C
R_F
–
1/4 LT1814
+
C
R_F
1/4 LT1814
1814 TA01
BANDPASS
OUT
Filter Frequency Response
R = 499Ω
0 _{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
10M
FREQUENCY (Hz)
1814 TA02
18134fa
1