特点
Gain-Bandwidth: 500MHz
Gain of 10 Stable Uncompensated
Slew Rate: 200V/μs
Input Noise Voltage: 3nV/rtHz
C-Load? Op Amp Drives Capacitive Loads
External Compensation Pin
Maximum Input Offset Voltage: 300μV
Maximum Input Bias Current: 300nA
Maximum Input Offset Current: 300nA
Minimum Output Swing Into 500 ohms: ±12V
Minimum DC Gain: 100V/mV, R
L
= 500 ohms
Settling Time to 0.1%: 75ns, 10V Step
Settling Time to 0.01%: 120ns, 10V Step
Differential Gain: 0.4%, A
V
= 2, R
L
= 150 ohms
Differential Phase: 0.1°, A
V
= 2, R
L
= 150 ohms
典型应用
典型应用
描述
Most H (Metal Can), J (Ceramic), and K (Metal Can) Packages from Linear Technology Are Now Obsolete
The LT?1222 is a low noise, very high speed operational amplifier with superior DC performance. The LT1222 is stable in a noise gain of 10 or greater without compensation, or the part can be externally compensated for lower closed-loop gain at the expense of lower bandwidth and slew rate. It features reduced input offset voltage, lower input bias currents, lower noise 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 compensation node can also be used to clamp the output swing.
The LT1222 is a member of a family of fast, high performance amplifiers that employ Linear Technology Corporation’s advanced complementary bipolar processing. For unity-gain stable applications the LT1220 can be used, and for gains of 4 or greater the LT1221 can be used.
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