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OPA2343UA/2K5

Dual RRIO CMOS Op Amp, 5.5MHz, 1pA IB, +/-1mV Vos, SOIC-8

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Pieza del fabricante：

OPA2343UA/2K5

Paquete：

SOIC-8 (4.9 x 3.9 x 1.5 mm)

Marca：
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Compromiso de calidad
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Descripción

Productos

The OPA2343UA/2K5 from Texas Instruments is a dual 5.5MHz rail-to-rail CMOS op amp with 1pA input bias current and +/-1mV offset in an SOIC-8 package.

Especificaciones

Tipo Dual Rail-to-Rail CMOS Operational Amplifier
Canales 2
Tensión de alimentación 2.5 V to 5.5 V (single)
Gain Bandwidth Product 5.5 MHz
Velocidad de giro 6 V/us
Tensión de offset de entrada +/-1 mV (max)
Corriente de polarización de entrada 1 pA (typical)
CMRR 80 dB (typical)
Supply Current per Channel 1.5 mA (typical)
Input/Output Rail-to-Rail
Paquete SOIC-8
Temperatura de funcionamiento -40C to +85C

Características

  • Rail-to-rail input and output
  • 5.5 MHz gain bandwidth product
  • 1 pA input bias current (CMOS input)
  • +/-1 mV max offset voltage
  • 2.5V to 5.5V single supply
  • Unity-gain stable

Aplicaciones

  • Piezoelectric sensor amplifiers
  • Photodiode transimpedance amplifiers
  • Battery-powered signal conditioning
  • High-impedance buffer amplifiers

The OPA2343UA/2K5 from Texas Instruments is a dual rail-to-rail input/output CMOS operational amplifier with 5.5 MHz gain bandwidth product and 1 pA typical input bias current. The CMOS input stage provides virtually zero input current, making it ideal for high-impedance sensor interfaces such as piezoelectric transducers and photodiode amplifiers. The rail-to-rail input and output capability maximizes dynamic range in single-supply applications from 2.5V to 5.5V. The +/-1 mV maximum offset voltage and 80 dB CMRR support precision signal processing. The 5.5 MHz bandwidth and 6 V/us slew rate enable active filter and signal conditioning applications at frequencies well beyond DC.

The OPA2343UA/2K5 uses a CMOS input stage with complementary P-channel and N-channel differential pairs to achieve rail-to-rail input common-mode range. The transition between the two pairs occurs at a crossover voltage near mid-supply. The folded-cascode gain stage provides the high DC gain needed for low offset and high CMRR. The output stage uses complementary P-channel and N-channel MOSFETs in a push-pull configuration that swings to within a few millivolts of both supply rails at light loads. The 1 pA input bias current is inherent to the MOSFET gate input, where the gate oxide provides virtually infinite DC input resistance. The internal compensation ensures unity-gain stability. The /2K5 suffix indicates tape and reel packaging with 2500 devices per reel.

Pin Nombre Tipo Función
1 1OUT Salida Channel 1 output
2 1IN- Entrada Channel 1 inverting input
3 1IN+ Entrada Channel 1 non-inverting input
4 V- Potencia Negative supply / GND
5 2IN+ Entrada Channel 2 non-inverting input
6 2IN- Entrada Channel 2 inverting input
7 2OUT Salida Channel 2 output
8 V+ Potencia Positive supply (2.5-5.5V)
  • Dual photodiode transimpedance amplifier with 1pA bias current for optical receiver
  • Piezoelectric accelerometer charge amplifier with rail-to-rail output
  • pH electrode dual buffer amplifier with ultra-low input current
  • 3.3V dual-channel active filter for ADC anti-aliasing
Fabricante Número de pieza Paquete Notas
TI OPA2340UA/2K5 SOIC-8 5.5MHz, similar, higher supply range
Microchip MCP6022-I/SN SOIC-8 10MHz, RRIO, CMOS, similar
TI OPA2320AIDR SOIC-8 20MHz, low noise, upgrade
TI OPA2348AIDR SOIC-8 1MHz, lower power, RRIO
ADI ADA4505-2AKSZ MSOP-8 Zero-drift, 1pA, upgrade
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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