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OPA2337EA/250

Dual CMOS op-amp, 3MHz GBW, RRO, 0.2pA Ib, 525uA Iq, SOT-23-8, 2.5-5.5V

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Pieza del fabricante：

OPA2337EA/250

Paquete：

SOT-23-8 2.9x1.6 mm

Marca：
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Compromiso de calidad
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Descripción

Productos

The OPA2337EA/250 from Texas Instruments is a dual CMOS operational amplifier in an SOT-23-8 package, featuring 3 MHz gain bandwidth, rail-to-rail output swing, and 525 uA per-channel quiescent current. With 0.2 pA input bias current and operation from 2.5V to 5.5V, it is ideal for battery-powered instruments, photodiode preamps, and space-constrained analog signal conditioning.

Especificaciones

Canales 2 (dual)
Architecture CMOS
Gain Bandwidth 3 MHz
Velocidad de giro 1.2 V/us
Tensión de offset de entrada 500 uV (typical)
Corriente de polarización de entrada 0.2 pA (typical)
Corriente de reposo 525 uA per channel
Corriente de salida 9 mA
Tensión de alimentación 2.5V – 5.5V
CMRR 90 dB
Paquete SOT-23-8 (2.9×1.6 mm)
Temperature -40 a +85 grados C

Características

  • Ultra-low 0.2 pA input bias current for high-impedance sensor interfaces
  • Rail-to-rail output swing maximizes dynamic range in single-supply systems
  • Input common-mode range includes ground for single-supply operation
  • SOT-23-8 package at 1/4 size of SO-8 for space-sensitive designs
  • Unity-gain stable with 120 dB open-loop gain

Aplicaciones

  • Battery-powered medical and portable instruments
  • Photodiode and transimpedance preamplifiers
  • Audio signal conditioning and low-noise preamps
  • ADC input driver circuits
  • Consumer electronics analog front-ends

The OPA2337 is a dual CMOS operational amplifier from Texas Instruments, part of the MicroAmplifier series. Packaged in the SOT-23-8, it is one of TI’s smallest dual op-amps at 1/4 the size of a conventional SO-8. The CMOS architecture provides low 0.2 pA input bias current, making it ideal for high-impedance sensor interfaces. With 3 MHz gain-bandwidth, 1.2 V/us slew rate, and rail-to-rail output swing, it operates from 2.5V to 5.5V single supply. The input common-mode range includes ground, enabling true single-supply operation. The dual channels feature independent circuitry for minimum crosstalk.

The OPA2337 uses a CMOS input stage providing ultra-low input bias current (0.2 pA typical) and high input impedance, followed by a folded-cascode gain stage and a rail-to-rail output stage. The output stage uses complementary P-channel and N-channel MOSFETs to swing within millivolts of both supply rails, maximizing dynamic range. The device is unity-gain stable with 120 dB open-loop gain and 90 dB CMRR. In the SOT-23-8 package, the two amplifier channels are completely independent with separate input and output pins, minimizing crosstalk even during overload conditions.

Pin Nombre Tipo Función
1 V+ Potencia Positive supply (2.5-5.5V)
2 -In B Entrada Amplifier B inverting input
3 +In B Entrada Amplifier B non-inverting input
4 Out B Salida Amplifier B output
5 V- Potencia Negative supply / Ground
6 Out A Salida Amplifier A output
7 -In A Entrada Amplifier A inverting input
8 +In A Entrada Amplifier A non-inverting input
  • Photodiode preamps: 0.2 pA bias current minimizes error in TIA configurations
  • Portable medical instruments: low power and small size for wearable sensors
  • Audio preamps: low noise and rail-to-rail output for maximum signal swing
  • ADC drivers: 3 MHz GBW drives medium-speed ADCs in single-supply systems
  • Battery-powered sensors: 525 uA/channel and ground-sensing for single-cell operation
Fabricante Número de pieza Paquete Notas
TI OPA2338EA/250 SOT-23-8 12.5 MHz GBW, G>=5 stable
TI OPA2310A3RUG DSBGA-8 3 MHz, 150 mA output, 1 us shutdown
TI TLV2322IP DIP-8 Lower cost, similar spec
Microchip MCP6002-I/SN SOIC-8 1 MHz, low cost dual CMOS op-amp
ADI AD8515ARMZ MSOP-8 5 MHz, low power dual op-amp
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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