Datasheet LT1222 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 500MHz, 3nV/√Hz, AV ≥ 10 Operational Amplifier |
| Pages / Page | 12 / 1 — FEATURES. DESCRIPTIO. Gain-Bandwidth: 500MHz. Gain of 10 Stable … |
| File Format / Size | PDF / 262 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. Gain-Bandwidth: 500MHz. Gain of 10 Stable Uncompensated. Slew Rate: 200V/. APPLICATIO S. TYPICAL APPLICATIO
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Text Version of Document
LT1222 500MHz, 3nV/√Hz, AV ≥ 10 Operational Amplifier
U FEATURES DESCRIPTIO
■
Gain-Bandwidth: 500MHz
The LT®1222 is a low noise, very high speed operational ■
Gain of 10 Stable Uncompensated
amplifier with superior DC performance. The LT1222 is ■
Slew Rate: 200V/
μ
s
stable in a noise gain of 10 or greater without compensa- ■ Input Noise Voltage: 3nV/√Hz tion, or the part can be externally compensated for lower ■ C-LoadTM Op Amp Drives Capacitive Loads closed-loop gain at the expense of lower bandwidth and ■ External Compensation Pin slew rate. It features reduced input offset voltage, lower ■ Maximum Input Offset Voltage: 300μV input bias currents, lower noise and higher DC gain than ■ Maximum Input Bias Current: 300nA devices with comparable bandwidth and slew rate. The ■ Maximum Input Offset Current: 300nA circuit is a single gain stage that includes proprietary DC ■ Minimum Output Swing Into 500Ω: ±12V gain enhancement circuitry to obtain precision with high ■ Minimum DC Gain: 100V/mV, RL = 500Ω speed. The high gain and fast settling time make the circuit ■ Settling Time to 0.1%: 75ns, 10V Step an ideal choice for data acquisition systems. The circuit is ■ Settling Time to 0.01%: 120ns, 10V Step also capable of driving capacitive loads which makes it ■ Differential Gain: 0.4%, AV = 2, RL = 150Ω useful in buffer or cable driver applications. The compen- ■ Differential Phase: 0.1°, AV = 2, RL = 150Ω sation node can also be used to clamp the output swing.
U APPLICATIO S
The LT1222 is a member of a family of fast, high perfor- mance amplifiers that employ Linear Technology ■ Wideband Amplifiers Corporation’s advanced complementary bipolar process- ■ Buffers ing. For unity-gain stable applications the LT1220 can be ■ Active Filters used, and for gains of 4 or greater the LT1221 can be used. ■ Video and RF Amplification LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ■ Cable Drivers C-Load is a trademark of Linear Technology Corporation. ■ 8-, 10-, 12-Bit Data Acquisition Systems
U TYPICAL APPLICATIO AV = 10 with Output Clamping AV = – 1, CC = 30pF Pulse Response
15V 3k 1N5711 1N5711 1N4148 0.1μF 3 5 V + IN 6 LT1222 ⎥ VOUT⎥ ≤ 0.5V 2 – 909Ω 100Ω LT1222 • TA01 LT1222 • TA02 RF = RG = 1k VIN = 100mV VS = ±15V f = 5MHz 1222fc 1
U FEATURES DESCRIPTIO
■
Gain-Bandwidth: 500MHz
The LT®1222 is a low noise, very high speed operational ■
Gain of 10 Stable Uncompensated
amplifier with superior DC performance. The LT1222 is ■
Slew Rate: 200V/
μ
s
stable in a noise gain of 10 or greater without compensa- ■ Input Noise Voltage: 3nV/√Hz tion, or the part can be externally compensated for lower ■ C-LoadTM Op Amp Drives Capacitive Loads closed-loop gain at the expense of lower bandwidth and ■ External Compensation Pin slew rate. It features reduced input offset voltage, lower ■ Maximum Input Offset Voltage: 300μV input bias currents, lower noise and higher DC gain than ■ Maximum Input Bias Current: 300nA devices with comparable bandwidth and slew rate. The ■ Maximum Input Offset Current: 300nA circuit is a single gain stage that includes proprietary DC ■ Minimum Output Swing Into 500Ω: ±12V gain enhancement circuitry to obtain precision with high ■ Minimum DC Gain: 100V/mV, RL = 500Ω speed. The high gain and fast settling time make the circuit ■ Settling Time to 0.1%: 75ns, 10V Step an ideal choice for data acquisition systems. The circuit is ■ Settling Time to 0.01%: 120ns, 10V Step also capable of driving capacitive loads which makes it ■ Differential Gain: 0.4%, AV = 2, RL = 150Ω useful in buffer or cable driver applications. The compen- ■ Differential Phase: 0.1°, AV = 2, RL = 150Ω sation node can also be used to clamp the output swing.
U APPLICATIO S
The LT1222 is a member of a family of fast, high perfor- mance amplifiers that employ Linear Technology ■ Wideband Amplifiers Corporation’s advanced complementary bipolar process- ■ Buffers ing. For unity-gain stable applications the LT1220 can be ■ Active Filters used, and for gains of 4 or greater the LT1221 can be used. ■ Video and RF Amplification LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ■ Cable Drivers C-Load is a trademark of Linear Technology Corporation. ■ 8-, 10-, 12-Bit Data Acquisition Systems
U TYPICAL APPLICATIO AV = 10 with Output Clamping AV = – 1, CC = 30pF Pulse Response
15V 3k 1N5711 1N5711 1N4148 0.1μF 3 5 V + IN 6 LT1222 ⎥ VOUT⎥ ≤ 0.5V 2 – 909Ω 100Ω LT1222 • TA01 LT1222 • TA02 RF = RG = 1k VIN = 100mV VS = ±15V f = 5MHz 1222fc 1
