OPA1S2385

更新时间： 2024-11-04 12:02:39

品牌	Logo	应用领域
德州仪器 - TI		开关放大器
页数	文件大小	规格书
23页	1032K
描述
250-MHz, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer

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OPA1S2385 数据手册

OPA1S2384

OPA1S2385

www.ti.com

SBOS645A –DECEMBER 2012–REVISED JUNE 2013

250-MHz, CMOS Transimpedance Amplifier (TIA)

with Integrated Switch and Buffer

Check for Samples: OPA1S2384, OPA1S2385

FEATURES

DESCRIPTION

The OPA1S2384 and OPA1S2385 (OPA1S238x)

•

Wide Bandwidth: 250 MHz

High Slew Rate: 150 V/μs

Rail-to-Rail Input/Output (I/O)

Fast Settling

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.

Low Input Bias Current: 3 pA

High Input Impedance: 10¹³Ω || 2 pF

SPST Switch:

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.

–

Low On-Resistance: 4 Ω

Low Charge Injection: 1 pC

Low Leakage Current: 10 pA

•

Flexible Configuration:

The characteristics of the OPA1S238x make this

–

Transimpedance Gain

External Hold Capacitor

Post-Gain

device ideally suited for use as

photodiode amplifier.

a wideband

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 adaptable 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.

•

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

APPLICATIONS

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.

•

Communications:

–

Optical Networking: EPON, GPON

Signal Strength Monitors

Burst-Mode RSSI

V+ SC⁽¹⁾

V-

•

Photodiode Monitoring

Fast Sample-and-Hold Circuits

Charge Amplifiers

OPA1S2384/5

+IN A

OUT B

-IN A

High-Speed Integrators

OUT A IN S

+IN B -IN B

(1) The OPA1S2384 internal switch is active

high; the OPA1S2384 internal switch is

active low.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...23

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与OPA1S2385相关器件

型号	品牌	获取价格	描述	数据表
OPA1S2385IDRCR	TI	获取价格	250-MHz, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer
OPA1S2385IDRCT	TI	获取价格	250-MHz, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer
OPA201AG	BB	获取价格	Operational Amplifier, 1 Func, 500uV Offset-Max, BIPolar, CDIP14,
OPA201BG	BB	获取价格	Operational Amplifier, 1 Func, 200uV Offset-Max, BIPolar, CDIP14,
OPA201CG	BB	获取价格	Operational Amplifier, 1 Func, 100uV Offset-Max, BIPolar, CDIP14,
OPA201SG	BB	获取价格	Operational Amplifier, 1 Func, 200uV Offset-Max, BIPolar, CDIP14,
OPA202	TI	获取价格	低噪声（0.2µVPP，9nV/√Hz）、高容性驱动 (25nF)、超 β、精密运算放大器
OPA202_V08	TI	获取价格	OPAx202 Precision, Low-Noise, Heavy Capacitive Drive, 36-V Operational Amplifiers
OPA202ID	TI	获取价格	低噪声（0.2µVPP，9nV/√Hz）、高容性驱动 (25nF)、超 β、精密运算放大器
OPA202IDBVR	TI	获取价格	Low-noise (0.2 µVPP, 9 nV/√Hz) heavy-capaciti

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