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TLC272ACDR

Dual LinCMOS op-amp, 3-16V, 1.1MHz GBW, RRO, 1pA Ib, SOIC-8

10200

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Pieza del fabricante：

TLC272ACDR

Paquete：

SOIC-8 (4.9 x 3.9 x 1.5mm, 1.27mm pitch)

Marca：

Categorías de productos：

Circuitos integrados lineales analógicos, Circuitos integrados IC

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Descripción

Productos

The TLC272ACDR is a dual single-supply LinCMOS operational amplifier from Texas Instruments with 1.1MHz bandwidth, 3.5V/µs slew rate, rail-to-rail output, and 800µV typical input offset in an SOIC-8 package.

Especificaciones

Number of Amplifiers	2 (dual)
Supply Voltage Range	3V to 16V (single or dual supply)
Tensión de offset de entrada	800µV typical, 5mV max (A-grade)
Corriente de polarización de entrada	1pA typical (CMOS input)
Producto ganancia-ancho de banda	1.1MHz (typical at 5V)
Velocidad de giro	3.5V/µs (typical at 5V)
Input Common-Mode Range	-0.2V to VDD-1.2V
Output Swing	Rail-to-rail (within 10mV of VDD at light loads)
Supply Current (per amplifier)	675µA typical at 5V
PSRR	70dB typical
CMRR	70dB typical
Temperatura de funcionamiento	-40°C to +85°C (C-grade)
Paquete	SOIC-8 (3.9 x 4.9mm)

Características

Single-supply operation from 3V to 16V
Rail-to-rail output swing (within 10mV of rails)
Extremely low input bias current: 1pA typical
High input impedance CMOS input stage
1.1MHz gain-bandwidth product
Internally compensated for unity-gain stability
Phase-reversal protection on inputs
Direct replacement for LM358 in many applications

Aplicaciones

Battery-powered instrumentation
High-impedance sensor interfaces
Photodiode and transimpedance amplifiers
Single-supply signal conditioning
Portable medical devices

Introducción del producto:TLC272ACDR Presentación del producto

The TLC272ACDR is a dual LinCMOS operational amplifier from Texas Instruments that combines the low input bias current of CMOS technology with the output drive capability of bipolar amplifiers. The device operates from a single 3V to 16V supply and features rail-to-rail output swing that reaches within 10mV of the supply rails under light loads. The 1pA typical input bias current makes it ideal for high-impedance sensor interfaces. The 1.1MHz gain-bandwidth product and 3.5V/µs slew rate support a wide range of signal conditioning applications. Phase-reversal protection prevents output inversion when the input common-mode range is exceeded. The A-grade offers 800µV typical input offset voltage.

Principio de funcionamiento:TLC272ACDR Principio de funcionamiento

The TLC272ACDR uses TI’s LinCMOS process, which combines PMOS input differential pairs with a CMOS output stage. The PMOS input transistors provide the ultra-low 1pA input bias current and very high input impedance, enabling direct connection to high-impedance sensors and capacitive sources. The input common-mode range extends from -0.2V below the negative rail to approximately VDD-1.2V, limited by the tail current source of the differential pair. The gain stage uses a folded-cascode architecture for high gain and wide bandwidth. The output stage is a class-AB CMOS push-pull that swings rail-to-rail, reaching within 10mV of both supply rails at light loads. The internal compensation capacitor provides unity-gain stability with any capacitive load. Phase-reversal protection circuitry prevents the output from changing sign when the input is driven beyond the common-mode range, a common failure mode of older CMOS op-amps. The 675µA per-amplifier supply current reflects the bias current needed to achieve the 1.1MHz GBW.

Descripción de la clavija:TLC272ACDR Definición y funciones de las clavijas

Pin	Nombre	Tipo	Descripción
1	1OUT	Salida	Amplifier 1 output
2	1IN-	Entrada	Amplifier 1 inverting input
3	1IN+	Entrada	Amplifier 1 non-inverting input
4	GND	Potencia	Negative supply or ground
5	2IN+	Entrada	Amplifier 2 non-inverting input
6	2IN-	Entrada	Amplifier 2 inverting input
7	2OUT	Salida	Amplifier 2 output
8	VDD	Potencia	Positive supply (3V-16V)

Application Scenarios:In which products and applications isTLC272ACDR usado

High-Impedance Sensors: 1pA input bias current prevents loading of pH electrodes, piezoelectric sensors, and photodiodes
Battery Instruments: Single-supply 3V operation and 675µA per amplifier extend battery life in portable devices
Photodiode Amps: RRO and low input bias current maximize dynamic range in transimpedance amplifier configurations
Signal Conditioning: 1.1MHz GBW supports audio and low-frequency signal processing with adequate loop gain
LM358 Upgrade: Pin-compatible with LM358 but with CMOS input, RRO, and much lower input bias current

Alternative Models:What chips are recommended as replacements for TLC272ACDR

Modelo	Fabricante	Diferencia clave	Paquete	Specs
TLC272ACDR	TI	A-grade version with tighter offset voltage specifications for precision measurement circuits	SOIC-8	1.8MHz/A-grade
TLC277CP	TI	Improved version with lower offset and higher output drive for demanding analog applications	DIP-8	1.8MHz/improved
MCP6002-I/SN	Microchip	1.8-6V dual rail-to-rail CMOS op-amp with 1MHz GBW for low-voltage signal processing	SOIC-8	1MHz/1.8-6V
LM358N	TI	Bipolar dual op-amp with 3-32V single supply for general-purpose analog signal chains	DIP-8	1.1MHz/bipolar
TLV2322IPWR	TI	Ultra-low-power 20kHz dual CMOS op-amp with 2µA supply for battery monitoring circuits	TSSOP-8	20kHz/2µA

TLC272 is a dual CMOS rail-to-rail output op-amp with 1.8MHz GBW and 3-16V supply range. The AC-grade offers tighter offset specifications. For lower-voltage designs, MCP6002 operates down to 1.8V. For ultra-low-power battery applications, TLV2322 draws only 2µA per amplifier. The TLC272 is ideal for single-supply signal conditioning where input common-mode range includes ground.