OPA1S2384 Texas instruments

OPA1S2384

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OPA1S2384

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Описание

The OPA1S2384 and OPA1S2385 (OPA1S238x) combine high bandwidth, FET-input operational amplifiers with a fast SPST CMOS switch designed for applications that require the tracking and capturing of fast signals. By providing a 250-MHz gain bandwidth product and rail-to-rail input/output swings in single-supply operation, the OPA1S238x is capable of wideband transimpedance gain and large output signal swing simultaneously. Low input bias current and voltage noise (6 nV/√Hz) make it possible to amplify extremely low-level input signals for maximum signal-to-noise ratio. The characteristics of the OPA1S238x make this device ideally suited for use as a wideband photodiode amplifier. In addition, the CMOS switch and subsequent buffer amplifier allow the OPA1S238x to be easily configured as a fast sample-and-hold circuit. The external hold capacitor and post-gain options make the OPA1S238x easily adoptable to a wide range of speed and accuracy requirements. Note that the OPA1S2384 closes the internal switch with a logic-high signal, and the OPA1S2385 closes the internal switch with a logic-low signal. The OPA1S238x are optimized for low-voltage operation from as low as +2.7 V up to +5.5 V. These devices are specified for a temperature range of –40°C to +85°C.

Wide Bandwidth: 250 MHz
High Slew Rate: 150 V/µs
Rail-to-Rail Input/Output (I/O)
Fast Settling
Low Input Bias Current: 3 pA
High Input Impedance: 10¹³ Ω || 2 pF
SPST Switch:
- Low On-Resistance: 4 Ω
- Low Charge Injection: 1 pC
- Low Leakage Current: 10 pA
Flexible Configuration:
- Transimpedance Gain
- External Hold Capacitor
- Post-Gain
Single Supply: +2.7 V to +5.5 V
Quiescent Current: 9.2 mA
Small Package: 3-mm × 3-mm SON-10
OPA1S2384: Internal Switch Active High
OPA1S2385: Internal Switch Active Low

Number of channels	2
GBW (typ) (MHz)	100
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	5.5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	2.7
Vos (offset voltage at 25°C) (max) (mV)	8
Rail-to-rail	In, Out
Features	Integrated TIA, Small Size
BW at Acl (MHz)	250
Operating temperature range (°C)	-40 to 85
Rating	Catalog