OPA3S2859開發(fā)板套件編程器的評估板-運算放大器規(guī)格書PDF中文資料

OPA3S2859屬于開發(fā)板套件編程器的評估板-運算放大器。由德州儀器制造生產的OPA3S2859評估板 - 運算放大器運算放大器評估板是裝有元器件的電路，用于提供特定集成電路或器件的工作實例。該產品族中的電路板提供了運算放大器實例。每個 IC 的通道類型有單通道、雙通道、三通道、四通道和八通道，放大器類型包括音頻、自動歸零、緩沖器、斬波器、電流反饋、電流檢測、差動、差分、四通道、儀表、隔離、J-FET、限幅、對數(shù)、功率、可編程增益、采樣保持、跨阻、可變增益、視頻、電壓反饋和零漂移。

1 Features

? Gain bandwidth product: 900 MHz

? Internal switches for programmable gain

? High impedance FET inputs

? Input voltage noise: 2.2 nV/√Hz

? Slew rate: 350 V/μs

? Supply voltage range: 3.3 V to 5.25 V

? Quiescent current: 22 mA/channel

? Power down mode IQ: 75 μA

? Temperature range: -55 °C to 125 °C

? Supports defense, aerospace, and medical

applications

– Controlled baseline

– One assembly and test site

– One fabrication site

– Extended product life cycle

– Extended product-change notification

– Product traceability

2 Applications

? Switchable transimpedance amplifier

? Smart munitions

? Laser distance measurement

? Optical time domain reflectometry (OTDR)

? Silicon photomultiplier (SiPM) buffer

? Photomultiplier tube post amplifier

? High speed programmable gain amplifier

3 Description

The OPA3S2859-EP is a wideband, low-noise

programmable gain amplifier with CMOS inputs

for wideband transimpedance and voltage amplifier

applications. When the device is configured as a

transimpedence amplifier (TIA), the 0.9-GHz gain

bandwidth product (GBWP) enables high closedloop

bandwidths in low-capacitance photodiode (PD)

applications.

The three internal switched feedback paths along

with an optional parallel non-switched feedback path

allows for up to four selectable gain configurations.

The internal switches minimize parasitic contributions

to increase performance compared to systems that

use discrete external switches. Each switch is

optimized for feedback resistor values ranging from

100 kΩ for wide dynamic range

applications. The selected switch path is controlled for

both channels using a 2-wire parallel interface. For

each channel selected, the gain path can also be held

constant by exerting the latch pin, which subsequently

disables switch control for the selected channel and

prevents the channel from changing gain.