1

LT1221

TYPICAL APPLICATIO

DESCRIPTIO

APPLICATIO S

FEATURES

150MHz, 250V/

Operational Amplifier

s

Gain-Bandwidth: 150MHz

s

Gain of 4 Stable

s

Slew Rate: 250V/

µs

s

Input Noise Voltage: 6nV/

√Hz

s

C-Load

s

Maximum Input Offset Voltage: 600

µV

s

Maximum Input Bias Current: 300nA

s

Maximum Input Offset Current: 300nA

s

Minimum Output Swing Into 500

Ω: ±12V

s

s

Settling Time to 0.1%: 65ns, 10V Step

s

Settling Time to 0.01%: 85ns, 10V Step

s

s

Differential Phase: 0.2

The LT

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.

Summing Amplifier

Summing Amplifier Large-Signal Response

LT1221 • TA02

f = 2MHz

s

Wideband Amplifiers

s

Buffers

s

Active Filters

s

Video and RF Amplification

s

Cable Drivers

s

8-, 10-, 12-Bit Data Acquisition Systems

LT1221 • TA01

+

–

1k

1k

1k

1k

LT1221

, LTC and LT are registered trademarks of Linear Technology Corporation

C-Load is a trademark of Linear Technology Corporation