Inicio > Circuitos integrados IC > Circuitos integrados lineales analógicos > CA3140MZ

CA3140MZ

4.5MHz BiMOS op-amp, MOSFET input, 1.5TΩ Zin, 10pA Ib, 4-36V supply, SOIC-8 Pb-free

6290

Inventario efectivo

Ir a la consulta

Image for reference only

Pieza del fabricante：

CA3140MZ

Paquete：

SOIC-8 (5.0 x 4.0 x 1.5 mm)

Descripción

Productos

The CA3140MZ is a 4.5MHz BiMOS operational amplifier featuring a MOSFET input stage and bipolar output stage, manufactured by Intersil (now Renesas). This op-amp combines the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip, providing very high input impedance (1.5TΩ typical), very low input current (10pA typical), and wide supply voltage range of 4V to 36V. The MZ suffix denotes the Pb-free SOIC-8 package.

Especificaciones

Producto ganancia-ancho de banda	4.5 MHz
Input Impedance	1.5 TΩ (Typ)
Corriente de polarización de entrada	10 pA (Typ)
Supply Voltage Range	4V to 36V (±2V to ±18V)
Velocidad de giro	9 V/μs
Common Mode Input Range	0.5V below V-
Output Swing	Swing to V- rail
Paquete	8-SOIC (Pb-free)
Temperatura de funcionamiento	-55°C to +125°C

Características

MOSFET input stage for ultra-high input impedance and ultra-low input current
Input common mode voltage range extends to 0.5V below negative supply
Output voltage swing complements input common mode range
Directly replaces industry standard 741 op-amp in most applications
Internally phase compensated for unity gain stability
Built-in output short-circuit protection to either supply rail

Aplicaciones

Ground-referenced single supply amplifiers
Sample-and-hold amplifiers and peak detectors
Long duration timers and multivibrators
Photocurrent instrumentation
Active filters and function generators

Introducción del producto:CA3140MZ Presentación del producto

The CA3140MZ is a BiMOS operational amplifier from Renesas (formerly Intersil) that uniquely combines PMOS transistors in the input circuit with bipolar transistors in the output stage on a single monolithic chip. This hybrid architecture provides the best of both worlds: the ultra-high input impedance and ultra-low input current of MOSFET inputs, combined with the robust output drive capability of bipolar transistors. The device operates from supply voltages of 4V to 36V in either single or dual supply configurations. The input common mode range extends 0.5V below the negative supply rail, making it exceptionally well-suited for single-supply applications. Internally phase compensated for stable unity-gain operation, the CA3140MZ is a direct replacement for the industry-standard 741 op-amp in most applications while offering dramatically improved input characteristics.

Principio de funcionamiento:CA3140MZ Principio de funcionamiento

The CA3140MZ employs a BiMOS architecture where the input differential pair uses PMOS transistors to achieve extremely high input impedance (1.5TΩ) and minimal input bias current (10pA). The PMOS input stage feeds into a bipolar gain stage that provides high voltage gain and slew rate. The output stage uses bipolar transistors in a class-AB configuration capable of driving loads to within a few volts of either supply rail, with built-in short-circuit protection. The gate-protected MOSFET inputs prevent static discharge damage while the P-channel architecture allows the input common mode range to extend below the negative supply, enabling true single-supply operation. Internal compensation ensures stability in voltage follower configurations without external components.

Descripción de la clavija:CA3140MZ Definición y funciones de las clavijas

Pin	Nombre	Tipo	Función
1	OFFSET NULL	Adjust	Input offset voltage null adjustment
2	INV. INPUT	Entrada	Inverting input
3	NON-INV. INPUT	Entrada	Non-inverting input
4	V-	Potencia	Negative supply voltage
5	OFFSET NULL	Adjust	Input offset voltage null adjustment
6	OUTPUT	Salida	Amplifier output
7	V+	Potencia	Positive supply voltage
8	STROBE	Entrada	Strobe terminal for output disable

Application Scenarios:In which products and applications isCA3140MZ usado

Single-supply ground-referenced amplifier circuits
Sample-and-hold and peak detector circuits
Photodiode and photocurrent instrumentation
Long duration timers and precision multivibrators
Active filters, comparators, and function generators

Alternative Models:What chips are recommended as replacements for CA3140MZ

Fabricante	Número de pieza	Paquete	Notas
Texas Instruments	TL072	SOIC-8	Dual JFET op-amp, 3MHz
Microchip	MCP6002	SOIC-8	Dual CMOS, low voltage, 1MHz
ADI	AD8606	SOIC-8	Dual CMOS, precision, 10MHz
TI	LMC6482	SOIC-8	Dual CMOS, RRIO, 1.5MHz
Renesas	CA3140AE	PDIP-8	Same IC, DIP package variant