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LM7321MFX/NOPB

Single RRO op amp, 20MHz, unlimited CL, SOT-23-5

4532

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Pieza del fabricante：

LM7321MFX/NOPB

Paquete：

SOT-23-5 (2.9 x 1.6 x 1.1 mm)

Marca：
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Descripción

Productos

The LM7321MFX/NOPB from Texas Instruments is a single-channel rail-to-rail input/output operational amplifier with 20MHz bandwidth, high output current, and unlimited capacitive load drive in SOT-23-5 package. Ideal for driving ADC inputs and cable loads.

Especificaciones

Canales 1
Bandwidth (GBP) 20 MHz
Velocidad de giro 12 V/us
Tensión de alimentación +/-15V or 2.7V to 32V single
Tensión de offset de entrada 1 mV typical
Corriente de polarización de entrada -200 nA typical
Corriente de salida +/-30 mA short circuit
Capacitive Load Unlimited (stable with any C)
Input Range Rail-to-Rail
Output Range Rail-to-Rail
Supply Current 1.5 mA per amplifier
Paquete SOT-23-5
Temperatura de funcionamiento -40 to +125 C

Características

  • Rail-to-rail input and output for maximum signal swing
  • Unlimited capacitive load drive – stable with any load capacitance
  • +/-30mA output current for driving heavy loads
  • 20MHz bandwidth and 12V/us slew rate for fast signals
  • 2.7V to 32V single supply or +/-15V dual supply operation

Aplicaciones

  • ADC input buffer with capacitive load
  • Cable driver for video and audio
  • Reference voltage buffer
  • Active filter with high capacitive load
  • Industrial signal conditioning

The LM7321MFX/NOPB from Texas Instruments is a single-channel rail-to-rail input/output operational amplifier offering 20MHz gain bandwidth product and 12V/us slew rate. A key differentiator is its ability to drive unlimited capacitive loads while maintaining stability, making it ideal for ADC input buffers and cable driving applications where load capacitance is unknown or variable. The device delivers +/-30mA output current and operates from 2.7V to 32V single supply or +/-15V dual supply. The MFX suffix denotes SOT-23-5 package and NOPB indicates lead-free (Pb-free) finish. Note: This device is no longer in production; the LM7321MAX/NOPB is the recommended replacement.

The LM7321MFX/NOPB operates as a voltage feedback operational amplifier with rail-to-rail input and output stages. (1) The input stage uses complementary NPN and PNP differential pairs in parallel, allowing the common-mode input range to extend from the negative to the positive supply rail. When the input approaches either rail, one differential pair takes over from the other seamlessly. (2) The output stage uses a push-pull Class AB architecture with rail-to-rail output swing, capable of delivering +/-30mA while driving unlimited capacitive loads. Stability with any capacitive load is achieved through an internal compensation network that adapts to the load impedance. (3) The 20MHz bandwidth and 12V/us slew rate make the device suitable for audio and medium-frequency signal processing. The 1.5mA supply current per amplifier provides a good speed-to-power ratio.

Pin Nombre Función
1 EN+ Non-inverting input
2 V- Negative supply / GND
3 EN- Inverting input
4 OUT Salida
5 V+ Positive supply
  • ADC input buffer: stable with the capacitive input of sampling ADCs without series isolation resistor
  • Cable driver for video and audio: unlimited CL handles long cable capacitance
  • Reference voltage buffer: drives multiple ADC VREF pins without oscillation
  • Active filter with high capacitive load in anti-aliasing applications
  • Industrial signal conditioning where load capacitance varies with cable length
Modelo Fabricante Diferencia clave
LM7321MAX/NOPB TI Direct replacement, newer production
LM7322MM/NOPB TI Dual channel version
OPA350EA TI 38MHz, RRO, low noise, similar
MCP6001T-I/SN Microchip 1MHz, low power, RRO, SOT-23-5
ADA4661-2 ADI Dual, RRO, unlimited CL
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