Texas Instruments

The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain. The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications. The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only). The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C. The OPA241, OPA2241, OPA4241 (OPAx241), and OPA251, OPA2251, OPA4251 (OPAx251) devices are specifically designed for battery-powered, portable applications. In addition to very low power consumption (25µA), these amplifiers feature low offset voltage, rail-to-rail output swing, high common-mode rejection, and high open-loop gain. The OPAx241 series is optimized for operation at low power supply voltage while the OPAx251 series is optimized for high-power supplies. Both series can operate from either single (2.7V to 36V) or dual supplies (±1.35V to ±18V). The input common-mode voltage range extends 200mV less than the negative supply—an excellent choice for single-supply applications. The OPAx241 and OPAx251 are unity-gain stable and can drive large capacitive loads. Special design considerations makes sure that these products are easy to use. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±250µV max) is so low, user adjustment is usually not required. However, external trim pins are provided for special applications (single versions only). The OPAx241 and OPAx251 are fully specified from −40°C to +85°C and operate from −55°C to +125°C.

Single, 36-V, 430-kHz, low-power operational amplifier

The OPA2541 is a dual power operational amplifier capable of operation from power supplies up to ±40V and output currents of 5A continuous. With two monolithic power amplifiers in a single package it provides unequaled functional density. The industry-standard 8-pin TO-3 package is isolated from all internal circuitry allowing it to be mounted directly to a heat sink without insulators which degrade thermal performance. Internal circuitry limits output current to approximately 6A. The OPA2541 is available in both industrial and military temperature range versions. The OPA2541 is a dual power operational amplifier capable of operation from power supplies up to ±40V and output currents of 5A continuous. With two monolithic power amplifiers in a single package it provides unequaled functional density. The industry-standard 8-pin TO-3 package is isolated from all internal circuitry allowing it to be mounted directly to a heat sink without insulators which degrade thermal performance. Internal circuitry limits output current to approximately 6A. The OPA2541 is available in both industrial and military temperature range versions.

The OPA607 and OPA2607 devices are decompensated, minimum gain of 6 V/V stable, general-purpose CMOS operational amplifier with low noise of 3.8 nV/√Hzand a GBW of 50 MHz. The low noise and wide bandwidth of the OPAx607 devices make them attractive for general-purpose applications which require a good balance between cost and performance. The high-impedance CMOS inputs make the OPAx607 devices an ideal amplifier to interface with sensors with high output impedance (for example, piezoelectric transducers). The OPAx607 devices feature a Power Down mode with a maximum quiescent current of less than 1 µA, making the device suitable for use in portable battery-powered applications. The rail-to-rail output (RRO) of the OPAx607 devices can swing up to 8 mV from the supply rails, maximizing dynamic range. The OPAx607 is optimized for low supply voltage operation as low as 2.2 V (±1.1 V) and up to 5.5 V (±2.75 V), and is specified over the temperature range of –40°C to +125°C. The OPA607 and OPA2607 devices are decompensated, minimum gain of 6 V/V stable, general-purpose CMOS operational amplifier with low noise of 3.8 nV/√Hzand a GBW of 50 MHz. The low noise and wide bandwidth of the OPAx607 devices make them attractive for general-purpose applications which require a good balance between cost and performance. The high-impedance CMOS inputs make the OPAx607 devices an ideal amplifier to interface with sensors with high output impedance (for example, piezoelectric transducers). The OPAx607 devices feature a Power Down mode with a maximum quiescent current of less than 1 µA, making the device suitable for use in portable battery-powered applications. The rail-to-rail output (RRO) of the OPAx607 devices can swing up to 8 mV from the supply rails, maximizing dynamic range. The OPAx607 is optimized for low supply voltage operation as low as 2.2 V (±1.1 V) and up to 5.5 V (±2.75 V), and is specified over the temperature range of –40°C to +125°C.

The OPA607-Q1 and OPA2607-Q1 devices are decompensated, minimum gain of 6 V/V stable, general-purpose CMOS operational amplifiers with low noise of 3.8 nV/√Hzand a GBW of 50 MHz. The low voltage offset drift (dVOS/dT) and wide bandwidth of the OPAx607-Q1 devices make them attractive for low cost general-purpose applications like low side current sensing and TIA (transipedance amplifier). The high-impedance CMOS inputs make the OPAx607-Q1 devices ideal amplifiers to interface with sensors with high output impedance (for example, piezoelectric transducers). The rail-to-rail output (RRO) of the OPAx607-Q1 devices can swing up to 8 mV from the supply rails, maximizing dynamic range. The OPAx607-Q1 is optimized for low supply voltage operation as low as 2.2 V (±1.1 V) and up to 5.5 V (±2.75 V), and is specified over the temperature range of –40°C to +125°C. The OPA607-Q1 and OPA2607-Q1 devices are decompensated, minimum gain of 6 V/V stable, general-purpose CMOS operational amplifiers with low noise of 3.8 nV/√Hzand a GBW of 50 MHz. The low voltage offset drift (dVOS/dT) and wide bandwidth of the OPAx607-Q1 devices make them attractive for low cost general-purpose applications like low side current sensing and TIA (transipedance amplifier). The high-impedance CMOS inputs make the OPAx607-Q1 devices ideal amplifiers to interface with sensors with high output impedance (for example, piezoelectric transducers). The rail-to-rail output (RRO) of the OPAx607-Q1 devices can swing up to 8 mV from the supply rails, maximizing dynamic range. The OPAx607-Q1 is optimized for low supply voltage operation as low as 2.2 V (±1.1 V) and up to 5.5 V (±2.75 V), and is specified over the temperature range of –40°C to +125°C.

The OPA2614 offers very low 1.8nVHzinput noise in a wideband, high gain bandwidth, voltage-feedback architecture. Intended for xDSL driver applications, the OPA2614 also supports this low input noise with exceptionally low harmonic distortion, particularly in differential configurations. Adequate output current is provided to drive the potentially heavy load of a twisted-pair line. Harmonic distortion for a 2VPP differential output operating from +5V to +12V supplies is ≤ –80dBc through 1MHz input frequencies. Operating on a low 6.0mA/ch supply current, the OPA2614 can satisfy most xDSL driver requirements over a wide range of possible supply voltage–from a single +5 condition, to ±5V, on up to a single +12V design. General-purpose applications on a single +5V supply will benefit from the high input and output voltage swing available on this reduced supply voltage. Baseband I/Q receiver channels can achieve almost perfect channel match with noise and distortion to support signals through 5MHz with > 14-bit dynamic range. The OPA2614 offers very low 1.8nVHzinput noise in a wideband, high gain bandwidth, voltage-feedback architecture. Intended for xDSL driver applications, the OPA2614 also supports this low input noise with exceptionally low harmonic distortion, particularly in differential configurations. Adequate output current is provided to drive the potentially heavy load of a twisted-pair line. Harmonic distortion for a 2VPP differential output operating from +5V to +12V supplies is ≤ –80dBc through 1MHz input frequencies. Operating on a low 6.0mA/ch supply current, the OPA2614 can satisfy most xDSL driver requirements over a wide range of possible supply voltage–from a single +5 condition, to ±5V, on up to a single +12V design. General-purpose applications on a single +5V supply will benefit from the high input and output voltage swing available on this reduced supply voltage. Baseband I/Q receiver channels can achieve almost perfect channel match with noise and distortion to support signals through 5MHz with > 14-bit dynamic range.