LT1221_15 Datasheet, PDF (1/12 Pages) Linear Technology – Operational Amplifier

FEATURES
s _{Gain-Bandwidth: 150MHz}
s _{Gain of 4 Stable}
s _{Slew Rate: 250V/µs}
s _{Input Noise Voltage: 6nV/√Hz}
s _C-Load^TM _{Op Amp Drives Capacitive Loads}
s _{Maximum Input Offset Voltage: 600µV}
s _{Maximum Input Bias Current: 300nA}
s _{Maximum Input Offset Current: 300nA}
s _{Minimum Output Swing Into 500Ω: ±12V}
s _{Minimum DC Gain: 50V/mV, RL = 500Ω}
s _{Settling Time to 0.1%: 65ns, 10V Step}
s _{Settling Time to 0.01%: 85ns, 10V Step}
s _{Differential Gain: 0.08%, AV = 4, RL = 150Ω}
U ^{s Differential Phase: 0.2°, AV = 4, RL = 150Ω}
APPLICATIO S
s _{Wideband Amplifiers}
s _Buffers
s _{Active Filters}
s _{Video and RF Amplification}
s _{Cable Drivers}
s _{8-, 10-, 12-Bit Data Acquisition Systems}
TYPICAL APPLICATIO
1k
V_A
1k
V_B
1k
V_C
Summing Amplifier
1k
–
LT1221
+
V_OUT
LT1221 • TA01
LT1221
150MHz, 250V/µs, A_V ≥ 4
Operational Amplifier
DESCRIPTIO
The LT^®1221 is a very high speed operational amplifier
with superior DC performance. The LT1221 is stable in a
noise gain of 4 or greater. It features reduced input offset
voltage, lower input bias currents and higher DC gain than
devices with comparable bandwidth and slew rate. The
circuit is a single gain stage that includes proprietary DC
gain enhancement circuitry to obtain precision with high
speed. The high gain and fast settling time make the circuit
an ideal choice for data acquisition systems. The circuit is
also capable of driving capacitive loads which makes it
useful in buffer or cable driver applications.
The LT1221 is a member of a family of fast, high perfor-
mance amplifiers that employ Linear Technology
Corporation’s advanced complementary bipolar process-
ing. For unity-gain stable applications the LT1220 can be
used, and for gains of 10 or greater the LT1222 can be used.
, LTC and LT are registered trademarks of Linear Technology Corporation
C-Load is a trademark of Linear Technology Corporation
Summing Amplifier Large-Signal Response
V_S = ±15V f = 2MHz
V_IN = 10V_P-P
LT1221 • TA02
1