Datasheet LT1464, LT1465 (Analog Devices)
| Hersteller | Analog Devices |
| Beschreibung | Dual/Quad Micropower, 1MHz C-Load Picoampere Bias Current JFET Input Op Amps |
| Seiten / Seite | 12 / 1 — FEATURES. DESCRIPTION. Input Bias Current:. 2pA Max (LT1464A). 20pA Max … |
| Dateiformat / Größe | PDF / 285 Kb |
| Dokumentensprache | Englisch |
FEATURES. DESCRIPTION. Input Bias Current:. 2pA Max (LT1464A). 20pA Max (LT1464, LT1465). Supply Current per Amplifier: 200. A Max
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Textversion des Dokuments
LT1464/LT1465 Dual/Quad Micropower, 1MHz C-Load Picoampere Bias Current JFET Input Op Amps
U FEATURES DESCRIPTION
■
Input Bias Current:
The LT®1464 (dual) and LT1465 (quad) are the first
2pA Max (LT1464A)
micropower op amps (200µA max per amp) to offer
20pA Max (LT1464, LT1465)
picoampere input bias currents (500fA typ) and unity-gain ■
Supply Current per Amplifier: 200
µ
A Max
stability for capacitive loads up to 10nF. The output can ■ Gain Bandwidth Product: 1MHz Typ swing a 10k load to within 1.5V of either supply, just like ■ Slew Rate: 0.9V/µs Typ op amps that require an order of magnitude more supply ■ Input Common Mode Range Includes Positive Rail current. This unique combination of performance makes ■ Unity-Gain Stable for C-LoadTM Up to 10nF the LT1464/LT1465 ideal over a wide range of input and ■ Open-Loop Gain: 1 Million Typ output impedances. ■ Guaranteed Specs with ±5V, ±15V Supplies In the design and testing of the LT1464/LT1465, particular ■ Guaranteed Matching Specifications emphasis has been placed on optimizing performance in ■ Standard Pinout: SO-8, SO-14 Package the low cost SO-8 (dual) and 14-lead SO (quad) package for
U
±15V and ±5V supplies. The input common mode range
APPLICATIONS
includes the positive rail. Slew rate (0.5V/µs min) and gain ■ Battery-Powered Systems bandwidth product (650kHz min) are 100% tested. A full ■ Photocurrent Amplifiers set of matching specifications is also provided. ■ Low Frequency, Micropower Active Filters , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Low Droop Track-and-Hold Circuits C-Load is a trademark of Linear Technology Corporation.
U TYPICAL APPLICATION Micropower Low Droop Track-and-Hold/Peak Detector
V+ 1/4 LTC201 13 15 C1
Small-Signal Response, CLOAD = 10nF
16 10nF A POLYSTYRENE 1 MCT2 5 4 14 V– V+ 5 + 2 2 6 4 – 8 7 R1* 1 1/2 LT1464 1/2 LT1464 VOUT 6 3 IN – 1 MCT2 5 + 4 1/4 LTC201 2 V– LT1464 • TA01 1 B 0.5pA 2 6 4 TYPICAL DROOP = = 0.05mV/s 10nF TOTAL SUPPLY CURRENT = 460 µA MAX 1464 • TA02 5 3 AV = 1 * R1 = 600 Ω FOR ±15V SUPPLIES VS = ±5V, ±15V R1 = 0 Ω FOR ±5V SUPPLIES CL = 10nF
FUNCTION MODE IN A IN B MODE IN A IN B
Track-and-Hold Track 0 0 Hold 1 1 Positive Peak Detector Reset 0 0 Store 0 1 Negative Peak Detector Reset 0 0 Store 1 0 LTC201 switch is open for logic "1". 1
U FEATURES DESCRIPTION
■
Input Bias Current:
The LT®1464 (dual) and LT1465 (quad) are the first
2pA Max (LT1464A)
micropower op amps (200µA max per amp) to offer
20pA Max (LT1464, LT1465)
picoampere input bias currents (500fA typ) and unity-gain ■
Supply Current per Amplifier: 200
µ
A Max
stability for capacitive loads up to 10nF. The output can ■ Gain Bandwidth Product: 1MHz Typ swing a 10k load to within 1.5V of either supply, just like ■ Slew Rate: 0.9V/µs Typ op amps that require an order of magnitude more supply ■ Input Common Mode Range Includes Positive Rail current. This unique combination of performance makes ■ Unity-Gain Stable for C-LoadTM Up to 10nF the LT1464/LT1465 ideal over a wide range of input and ■ Open-Loop Gain: 1 Million Typ output impedances. ■ Guaranteed Specs with ±5V, ±15V Supplies In the design and testing of the LT1464/LT1465, particular ■ Guaranteed Matching Specifications emphasis has been placed on optimizing performance in ■ Standard Pinout: SO-8, SO-14 Package the low cost SO-8 (dual) and 14-lead SO (quad) package for
U
±15V and ±5V supplies. The input common mode range
APPLICATIONS
includes the positive rail. Slew rate (0.5V/µs min) and gain ■ Battery-Powered Systems bandwidth product (650kHz min) are 100% tested. A full ■ Photocurrent Amplifiers set of matching specifications is also provided. ■ Low Frequency, Micropower Active Filters , LTC and LT are registered trademarks of Linear Technology Corporation. ■ Low Droop Track-and-Hold Circuits C-Load is a trademark of Linear Technology Corporation.
U TYPICAL APPLICATION Micropower Low Droop Track-and-Hold/Peak Detector
V+ 1/4 LTC201 13 15 C1
Small-Signal Response, CLOAD = 10nF
16 10nF A POLYSTYRENE 1 MCT2 5 4 14 V– V+ 5 + 2 2 6 4 – 8 7 R1* 1 1/2 LT1464 1/2 LT1464 VOUT 6 3 IN – 1 MCT2 5 + 4 1/4 LTC201 2 V– LT1464 • TA01 1 B 0.5pA 2 6 4 TYPICAL DROOP = = 0.05mV/s 10nF TOTAL SUPPLY CURRENT = 460 µA MAX 1464 • TA02 5 3 AV = 1 * R1 = 600 Ω FOR ±15V SUPPLIES VS = ±5V, ±15V R1 = 0 Ω FOR ±5V SUPPLIES CL = 10nF
FUNCTION MODE IN A IN B MODE IN A IN B
Track-and-Hold Track 0 0 Hold 1 1 Positive Peak Detector Reset 0 0 Store 0 1 Negative Peak Detector Reset 0 0 Store 1 0 LTC201 switch is open for logic "1". 1