LT1220_15 Datasheet, PDF (1/12 Pages) Linear Technology – Operational Amplifier

FEATURES
s _{Gain-Bandwidth: 45MHz}
s _{Unity-Gain Stable}
s _{Slew Rate: 250V/µs}
s _C-Load^TM _{Op Amp Drives Capacitive Loads}
s _{Maximum Input Offset Voltage: 1mV}
s _{Maximum Input Bias Current: 300nA}
s _{Maximum Input Offset Current: 300nA}
s _{Minimum Output Swing Into 500Ω: ±12V}
s _{Minimum DC Gain: 20V/mV, RL = 500Ω}
s _{Settling Time to 0.1%: 75ns, 10V Step}
s _{Settling Time to 0.01%: 95ns, 10V Step}
s _{Differential Gain: 0.1%, AV = 2, RL = 150Ω}
s _{Differential Phase: 0.2°, AV = 2, RL = 150Ω}
U
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}
LT1220
45MHz, 250V/µs
Operational Amplifier
DESCRIPTIO
The LT^®1220 is a high speed operational amplifier with
superior DC performance. The LT1220 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 pre-
cision 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 large
capacitive loads which makes it useful in buffer or cable
driver applications.
The LT1220 is a member of a family of fast, high perfor-
mance amplifiers that employ Linear Technology
Corporation’s advanced complementary bipolar process-
ing. For applications with gains of 4 or greater the LT1221
can be used, and for gains of 10 or greater the LT1222 can
be used for increased bandwidth.
, LTC and LT are registered trademarks of Linear Technology Corporation
C-Load is a trademark of Linear Technology Corporation
TYPICAL APPLICATIO
Two Op Amp Instrumentation Amplifier
R5
R4
220Ω
10k
R1
R2
10k
1k
–
R3
1k
–
LT1220
–
+
V_IN
LT1220
+
V_OUT
+
GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102
TRIM R5 FOR GAIN
TRIM R1 FOR COMMON MODE REJECTION
BW = 450kHz
LT1220 • TA01
Inverter Pulse Response
R_F = R_G = 1k V_IN = 20V
V_S = ±15V f = 2MHz
LT1220 • TA02
1