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OPA3S2859-EP

ACTIVE

Enhanced product, dual-channel, 900-MHz, 2.2-nV/√Hz, programmable gain transimpedance amplifier

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Data sheet

OPA3S2859-EP

ACTIVE
Data sheet Order now

Product details

Number of channels 2 GBW (typ) (MHz) 900 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Vos (offset voltage at 25°C) (max) (mV) 8 Rail-to-rail No Features Shutdown BW at Acl (MHz) 1800 Operating temperature range (°C) -55 to 125 Rating HiRel Enhanced Product
Number of channels 2 GBW (typ) (MHz) 900 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Vos (offset voltage at 25°C) (max) (mV) 8 Rail-to-rail No Features Shutdown BW at Acl (MHz) 1800 Operating temperature range (°C) -55 to 125 Rating HiRel Enhanced Product
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • 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
  • 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

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 closed-loop 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 < 1 kΩ to  > 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.

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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 closed-loop 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 < 1 kΩ to  > 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.

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OPA3S2859 ACTIVE Dual-channel, 900-MHz 2.2-nV/√Hz programmable-gain transimpedance amplifier A standard industrial-grade version of the OPA3S2859 with the same pinout

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* Data sheet OPA3S2859-EP Enhanced Product, Dual-Channel, 900-MHz, 2.2-nV/√Hz, Programmable Gain Transimpedance Amplifier datasheet (Rev. B) PDF | HTML Dec 16, 2021
* Radiation & reliability report OPA3S2859-EP Reliability Report Dec 9, 2021

Design & development

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Evaluation board

OPA3S2859RTWEVM — Evaluation module for OPA3S2859-EP 900-MHz, 2.5-nV/√Hz programmable gain transimpedance amplifier

The OPA3S2859RTWEVM evaluation module (EVM) is designed to easily demonstrate the functionality and versatility of the amplifier. The EVM can be configured for single or split supplies and footprints for SMA connectors on all analog inputs and outputs. The layout is optimized to reduce (...)
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Simulation model

OPA3S2859 and OPA3S2859-EP PSpice Model

SBOMBN0.ZIP (139 KB) - PSpice model
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Simulation model

OPA3S2859 and OPA3S2859-EP TINA-TI Reference Design Circuit

SBOMBM8 (32 KB) - TINA-TI reference design
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Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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WQFN (RTW) 24 Ultra Librarian
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