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ADA4897-2ARMZ - Dual Low Noise RRO Op Amp | Analog Devices
The ADA4897-2ARMZ is a dual, unity-gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifier from Analog Devices. It operates from a 3 V to 10 V supply and features a quiescent current of 3 mA per amplifier. The device is available in a 10-lead MSOP package, making it suitable for space-constrained applications. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog signal processing, used in applications ranging from signal conditioning to active filtering. The ADA4897-2 belongs to the class of high-speed, low-noise amplifiers, which are essential in precision instrumentation and communication systems where signal integrity is critical. Key features of the ADA4897-2 include a low input voltage noise of 1 nV/√Hz, a 1/f noise corner of 2.4 nV/√Hz at 10 Hz, and a spurious-free dynamic range (SFDR) of 80 dBc at 2 MHz. The amplifier also provides a bandwidth of 230 MHz and a slew rate of 120 V/µs, enabling fast signal processing. The rail-to-rail output stage maximizes dynamic range, making it ideal for single-supply applications. The ADA4897-2 uses a voltage feedback architecture with complementary bipolar transistors, achieving low distortion and high linearity. The device is fully specified over the industrial temperature range of -40°C to +125°C. Its low power consumption and high speed make it a versatile choice for battery-powered and high-density systems. Typical applications include ultrasound equipment, low noise PLL filters, high performance ADC drivers, and high speed signal conditioning. The amplifier's low noise and high bandwidth ensure accurate signal reproduction in these demanding environments. When designing with the ADA4897-2, proper power supply decoupling is essential to maintain stability and minimize noise. Use 0.1 µF ceramic capacitors close to the supply pins and a 10 µF tantalum capacitor for bulk decoupling. The output can drive capacitive loads up to 100 pF without oscillation, but for larger loads, an isolation resistor may be required.
ADA4897-2ARMZ-RL7 - Dual 1nV/√Hz Low Noise Op Amp | Analog Devices
The ADA4897-2ARMZ-RL7 is a dual, unity-gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifier from Analog Devices. It operates over a supply range of 3 V to 10 V and features a quiescent current of 3 mA per amplifier. The device is offered in a 10-lead MSOP package, making it suitable for space-constrained applications. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output. It is a fundamental building block in analog signal processing, used in applications such as filtering, amplification, and signal conditioning. The ADA4897-2 belongs to the class of high-speed, low-noise op amps, which are essential in precision instrumentation and communication systems. Key features include a voltage noise density of 1 nV/√Hz at 100 kHz, 1/f noise of 2.4 nV/√Hz at 10 Hz, and a spurious-free dynamic range (SFDR) of -80 dBc at 2 MHz. The amplifier provides a slew rate of 120 V/µs and a gain-bandwidth product of 230 MHz. It also features rail-to-rail output swing, enabling maximum dynamic range in low-voltage applications. The ADA4897-2 uses a complementary bipolar process, achieving low distortion and high linearity. The device is fully specified over the extended industrial temperature range of -40°C to +125°C. Its low noise and high speed make it ideal for driving high-resolution ADCs, ultrasound front-ends, and low-noise signal chains. Typical applications include ultrasound imaging, low-noise PLL loop filters, high-speed ADC drivers, and active filters. The dual configuration allows compact designs for stereo audio or multi-channel data acquisition. The rail-to-rail output ensures efficient use of the supply voltage, which is critical in battery-powered systems. When designing with this amplifier, ensure proper power supply decoupling with 0.1 µF ceramic capacitors close to the supply pins. The thermal pad (if present) should be connected to a low-impedance ground plane for optimal thermal performance. The input common-mode range extends to the negative rail, but not to the positive rail, so level shifting may be required for single-supply applications.
ADA4940-1ACPZ - Ultralow Power Differential ADC Driver | Analog Devices
The ADA4940-1ACPZ from Analog Devices is a high speed, low power differential amplifier designed to drive high performance analog-to-digital converters (ADCs). It operates from a single 3.3V to 5V supply or dual supplies, consuming only 1.25 mA quiescent current, making it ideal for battery-powered and portable applications. The device provides two closely balanced differential outputs from either differential or single-ended inputs, with a common-mode output voltage that is adjustable to match the ADC input range. A differential amplifier is an electronic amplifier that amplifies the difference between two input voltages while rejecting common-mode signals. In the context of ADC driving, it converts a single-ended signal into a balanced differential signal, improving noise immunity and increasing the dynamic range of the data acquisition system. The ADA4940-1 is fabricated on Analog Devices' advanced dielectrically isolated SiGe bipolar process, enabling high speed and low distortion. Key features include ultralow power consumption of 1.25 mA, low noise and low distortion, and a bandwidth of 34 MHz. The device supports resolutions up to 18 bits from DC to 1 MHz, making it suitable for precision data acquisition. The output common-mode voltage is adjustable via a dedicated pin, allowing direct interface to SAR and sigma-delta ADCs. The ADA4940-1 is available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP package, which is compact and suitable for space-constrained designs. Technical depth: The ADA4940-1 uses a differential architecture with internal feedback, providing excellent gain accuracy and low offset. The device features a disable pin that reduces supply current to 10 µA, enabling power cycling in portable systems. The input voltage noise is 3.9 nV/√Hz, and the distortion at 1 MHz is -100 dBc, ensuring high signal fidelity. The device operates over the industrial temperature range of -40°C to +125°C. Typical applications include driving SAR and sigma-delta ADCs in medical instrumentation, industrial process control, and portable data acquisition systems. The low power and small package make it ideal for battery-powered devices such as portable medical monitors and handheld test equipment. Design consideration: To achieve optimal performance, place a 0.1 µF decoupling capacitor close to each supply pin and use a ground plane to minimize noise. The output common-mode voltage should be set to the ADC's reference midpoint for best dynamic range.
ADA4940-1ACPZ-RL7 - Ultralow Power Differential ADC Driver | ADI
The ADA4940-1ACPZ-RL7 from Analog Devices is a low noise, low distortion fully differential amplifier designed to drive high-performance SAR and sigma-delta analog-to-digital converters (ADCs) with resolutions up to 18 bits. Operating on a mere 1.25 mA of quiescent current, it is an ideal choice for power-sensitive applications. The device is available in a compact 16-lead LFCSP-VQ (3x3 mm) package, making it suitable for space-constrained designs. A fully differential amplifier (FDA) is an amplifier that converts a single-ended input signal into a differential output, or amplifies a differential input while rejecting common-mode noise. It is a critical building block in precision data acquisition systems, providing the balanced drive required by high-resolution ADCs. The ADA4940-1 belongs to the family of differential amplifiers, which are a subset of operational amplifiers used specifically for driving ADCs and transmitting signals over long lines. Key features include ultralow power consumption of 1.25 mA quiescent current, low noise and distortion, and an adjustable output common-mode voltage. The device supports a wide supply range and provides excellent AC performance, making it suitable for applications from DC to 1 MHz. The ADA4940-1 is optimized for driving the PULSAR family of ADCs from Analog Devices, ensuring seamless integration. Technically, the ADA4940-1 employs a precision architecture that maintains low offset and high linearity. The adjustable common-mode output allows direct interface to ADC inputs, eliminating the need for external level shifting. The device also features a power-down mode to conserve energy in battery-powered systems. Its low power consumption does not compromise performance, making it a standout choice for portable instrumentation. Typical applications include driving SAR ADCs in medical imaging, industrial process control, and portable battery-powered devices. The ADA4940-1 is also used in communication systems where signal integrity is paramount. Its low power and small footprint make it ideal for multi-channel data acquisition systems. When designing with this device, ensure proper decoupling of the power supply pins and careful layout of the differential traces to minimize parasitic capacitance. The output common-mode voltage should be set to match the ADC's input range for optimal performance.
ADA4940-2ACPZ - Low Power Differential ADC Driver | Analog Devices
The Analog Devices ADA4940-2ACPZ is a dual, low power, fully differential amplifier designed for driving high-resolution SAR and sigma-delta ADCs. It operates from a single 3.3V to 7V supply or dual supplies up to ±3.5V, consuming only 1.25 mA quiescent current per amplifier. The device provides two closely balanced differential outputs from either differential or single-ended inputs, making it ideal for precision data acquisition systems. A fully differential amplifier (FDA) is an amplifier with differential inputs and differential outputs, used to convert single-ended signals to differential, buffer differential signals, and drive ADCs. It is a key building block in signal chains, sitting between the sensor/amplifier stage and the ADC, ensuring optimal signal integrity and common-mode rejection. The ADA4940-2 belongs to the family of differential amplifiers, which are a subset of operational amplifiers, which are part of the broader category of analog integrated circuits. Key features include a -3 dB bandwidth of 26 MHz, a slew rate of 45 V/µs, and a low input voltage noise of 3.9 nV/√Hz. The device achieves a spurious-free dynamic range (SFDR) of -110 dBc at 100 kHz and a THD of -110 dB at 100 kHz, ensuring high fidelity for precision applications. It also features an output common-mode voltage control pin (VOCM) for level shifting, and a power-down pin for standby operation. The ADA4940-2 is fabricated on Analog Devices' advanced dielectrically isolated SiGe bipolar process, providing excellent DC accuracy with a maximum input offset voltage of 150 µV and a typical offset drift of 0.5 µV/°C. The device is available in a Pb-free, 4 mm × 4 mm, 24-lead LFCSP package, which is compact and suitable for space-constrained designs. Typical applications include driving PULSAR ADCs, such as the AD7985 and AD7986, in medical imaging, industrial process control, and instrumentation. The low power consumption and high performance make it suitable for battery-powered portable devices and multi-channel data acquisition systems. When designing with the ADA4940-2, ensure proper supply decoupling with 0.1 µF capacitors close to the supply pins. The VOCM pin should be driven by a low-impedance source to set the output common-mode voltage, and the feedback network should be matched to maintain balance and minimize distortion.
ADA4940-2ACPZ-RL7 - Ultralow Power ADC Driver | Analog Devices
The ADA4940-2ACPZ-RL7 from Analog Devices is a dual, ultralow power, low distortion fully differential amplifier (FDA) designed to drive high-performance SAR and sigma-delta ADCs with resolutions up to 18 bits. Operating from a single 3.3V to 7V supply or dual supplies up to ±3.5V, it consumes only 1.25 mA of quiescent current per amplifier, making it ideal for battery-powered and power-sensitive applications. The device is housed in a 24-lead LFCSP (4mm x 4mm) package with an exposed pad for enhanced thermal performance. A fully differential amplifier (FDA) is an operational amplifier with differential inputs and differential outputs, providing balanced signals that reject common-mode noise and even-order harmonics. FDAs are essential in precision data acquisition systems, where they convert single-ended signals to differential for driving ADCs, improving dynamic range and reducing distortion. The ADA4940-2 belongs to the ADA4940 family, which includes the single-channel ADA4940-1 and the dual ADA4940-2, both offering the same low noise and low distortion performance. Key features include a low input voltage noise of 3.9 nV/√Hz, a spurious-free dynamic range (SFDR) of -110 dBc at 100 kHz, and a -3 dB bandwidth of 26 MHz. The output common-mode voltage is adjustable via a VOCM pin, allowing precise level shifting to match the ADC input range. The device also features a disable pin for power-down, reducing quiescent current to 10 µA, and an internal common-mode feedback loop that maintains output balance. The ADA4940-2 uses a precision bipolar process with laser-trimmed thin-film resistors, achieving low DC offset (typically 50 µV) and excellent gain accuracy. Its differential output swing is rail-to-rail, and it can drive capacitive loads up to 10 pF without oscillation. The device is fully specified over the -40°C to +125°C temperature range, ensuring reliable operation in industrial and automotive environments. Typical applications include driving SAR ADCs such as the AD7985 and AD7768, medical imaging systems, portable instrumentation, and communications receivers. The low power consumption and small footprint make it suitable for multi-channel data acquisition systems where board space and thermal budget are constrained. When designing with the ADA4940-2, ensure proper supply decoupling with 0.1 µF and 10 µF capacitors close to the VCC and VEE pins. The VOCM pin should be driven by a low-impedance source to avoid common-mode errors. For optimal distortion, keep the feedback resistor values between 200 Ω and 1 kΩ and minimize parasitic capacitance at the summing nodes.
ADA4941-1ARZ - 18-Bit Differential ADC Driver | Analog Devices
The ADA4941-1ARZ is a low power, single-ended input, differential output amplifier optimized for driving high resolution analog-to-digital converters (ADCs). Manufactured on Analog Devices' proprietary second-generation eXtra fast complementary bipolar (XFCB) process, it achieves 18-bit performance on low supply currents. The device is configured in an easy-to-use, single-ended-to-differential gain of +2 configuration, making it ideal for precision data acquisition systems. A differential ADC driver is an amplifier that converts a single-ended input signal into a differential output, which is required by many high-performance ADCs to improve noise immunity and dynamic range. The ADA4941-1 belongs to the class of differential amplifiers, which are essential building blocks in signal chains for precision measurement, medical imaging, and communications. By providing a balanced output, it enables the full-scale input range of the ADC to be utilized, enhancing the signal-to-noise ratio (SNR) and reducing even-order harmonics. Key features include ultralow distortion of 120 dBc THD at 10 kHz, low noise achieving 97 dB SNR at 100 kHz with 4 V p-p output, and extremely low power consumption on a 3 V supply. The device operates from a single supply, simplifying power design. It offers high input impedance, which minimizes loading on the preceding stage. The ADA4941-1 is available in an 8-lead SOIC package (ARZ suffix), suitable for space-constrained applications. Technically, the ADA4941-1 uses a differential architecture with an internal common-mode feedback loop that sets the output common-mode voltage to a reference level, typically mid-supply. This allows direct coupling to ADCs with a specified common-mode input range. The XFCB process provides high-speed complementary bipolar transistors with excellent matching, contributing to the low distortion and noise performance. The device is stable with capacitive loads, simplifying PCB layout. Typical applications include driving 16-bit and 18-bit PulSAR ADCs such as the AD7687, AD7690, and AD7691. It is also used in industrial process control, medical instrumentation, and communications systems where high resolution and low power are critical. The single-ended-to-differential conversion capability makes it versatile for interfacing sensors and transducers to differential ADCs. When designing with the ADA4941-1, ensure proper supply decoupling with 0.1 uF and 10 uF capacitors close to the VCC and VEE pins. The output common-mode voltage can be adjusted via the VOCM pin to match the ADC input range. For optimal performance, use precision resistors with low temperature coefficient for the gain-setting network.
ADA4941-1ARZ-RL7 - Differential ADC Driver | Analog Devices
The ADA4941-1ARZ-RL7 is a low power, single-ended input, differential output amplifier optimized for driving high resolution analog-to-digital converters (ADCs). Manufactured by Analog Devices on their proprietary second-generation eXtra fast complementary bipolar (XFCB) process, this device achieves 18-bit performance on low supply currents. It is configured in an easy-to-use, single-ended-to-differential gain of +2 configuration, making it ideal for driving 16-bit and 18-bit PulSAR ADCs such as the AD7687, AD7690, and AD7691. A differential ADC driver is an amplifier that converts a single-ended input signal into a differential output, which is required by many high-performance ADCs to improve noise immunity and dynamic range. The ADA4941-1 belongs to the category of differential amplifiers, which are a subset of operational amplifiers used in signal conditioning chains. These amplifiers are essential in precision data acquisition systems where the ADC's performance depends on the quality of the driving signal. Key features of the ADA4941-1 include ultralow distortion of 120 dBc THD at 10 kHz, low noise enabling 97 dB SNR at 100 kHz with a 4 V p-p output, and extremely low power consumption on a 3 V supply. The device operates from a single supply, simplifying power supply design. Its high input impedance minimizes loading on the source, and the differential output provides the balanced drive required by modern ADCs. Technically, the ADA4941-1 uses a single-ended to differential conversion with a fixed gain of +2, eliminating the need for external gain-setting resistors. The output common-mode voltage is set by an internal reference, ensuring proper ADC input range. The XFCB process provides high speed and low distortion while maintaining low power, making it suitable for battery-powered and portable instrumentation. Typical applications include driving 16-bit and 18-bit SAR ADCs in medical imaging, industrial process control, and precision data acquisition systems. The device is also used in communication systems where high dynamic range is required. Its low power consumption makes it ideal for portable and battery-operated equipment. When designing with the ADA4941-1, ensure that the input signal is within the common-mode input range and that the output is properly filtered to avoid aliasing. The device is available in an 8-lead SOIC package, and the RL7 suffix indicates tape and reel packaging for automated assembly.
ADA4945-1ACPZ - Low-Noise FDA ADC Driver, 3-10V | Analog Devices
The Analog Devices ADA4945-1ACPZ is a low-noise, low-distortion, fully differential amplifier (FDA) with two selectable power modes, designed to drive high-performance ADCs in data acquisition and signal processing systems. It operates from a 3 V to 10 V supply, delivers rail-to-rail differential outputs, and is housed in a 16-lead LFCSP (3 mm × 3 mm) package. The two power modes (full power and low power) let designers trade quiescent current against bandwidth and input voltage noise (1.8 nV/√Hz typical in full power mode). A fully differential amplifier (FDA) is an op-amp derivative with differential inputs and differential outputs. FDAs sit in the signal-chain hierarchy between operational amplifiers and differential amplifiers, providing common-mode rejection, suppressing even-order harmonics, and converting single-ended signals into balanced differential signals for modern differential-input ADCs. The ADA4945-1 belongs to the broader analog IC category, specifically under amplifier ICs and the special-purpose ADC-driver sub-family. Key specifications include 0.1 µV/°C offset drift, low DC offset, an output common-mode (VOCM) pin for setting the ADC input common-mode voltage, adjustable output common-mode, output limiting for ADC overdrive protection, and excellent dynamic performance. The high-voltage SiGe complementary bipolar process enables operation up to 10 V — higher than many competing FDAs — providing headroom for ADCs with wider input ranges. Technically, the SiGe dielectrically-isolated process delivers low distortion and low input voltage noise simultaneously, while the selectable power-mode pin optimizes current draw for either maximum bandwidth or low-power applications. The differential output stage provides two closely balanced outputs in response to either differential or single-ended inputs, simplifying the interface to differential ADCs such as the AD9680, AD9268, and AD9656. Typical applications include high-speed ADC drivers, medical imaging front ends, communications receivers, IF and baseband signal chains, and industrial instrumentation. The low offset drift maintains DC accuracy over temperature, while rail-to-rail outputs maximize dynamic range in low-voltage systems. When designing with the ADA4945-1, set VOCM to match the ADC input common-mode voltage, select the appropriate power mode for the bandwidth/power trade-off, and follow the datasheet PCB layout guidelines to minimize parasitic capacitance and preserve signal integrity at high frequencies. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found on the manufacturer datasheet alone.
ADA4945-1ACPZ-RL7 - Low Noise FDA ADC Driver | Analog Devices
The ADA4945-1ACPZ-RL7 from Analog Devices is a low-noise, low-distortion, fully differential amplifier (FDA) designed for driving high-performance ADCs. It operates over a broad power supply range of 3 V to 10 V and features two selectable power modes, allowing designers to optimize between power consumption and dynamic performance. The device is offered in a compact 16-lead LFCSP (3x3 mm) package, making it suitable for space-constrained applications. A fully differential amplifier (FDA) is an amplifier with differential inputs and differential outputs, providing balanced signals that reject common-mode noise and even-order harmonics. FDAs are essential in high-speed signal chains, particularly for driving ADCs, where they convert single-ended signals to differential, provide gain, and buffer the ADC input. The ADA4945-1 fits into the hierarchy: fully differential amplifier -> differential amplifier -> operational amplifier -> analog IC -> semiconductor. Key features include ultra-low DC offset and offset drift (0.1 µV/°C), high speed, and excellent distortion performance. The device achieves low noise and low distortion, making it ideal for data acquisition systems requiring high accuracy. The two power modes allow a trade-off between power dissipation and bandwidth, enabling efficient operation in battery-powered or high-performance systems. Technically, the ADA4945-1 uses a precision architecture with internal common-mode feedback, ensuring accurate output common-mode voltage control. It provides a wide input common-mode range and rail-to-rail output, simplifying interface with various ADC inputs. The device also includes a disable feature for power saving, and its small package minimizes board space. Typical applications include driving high-speed ADCs in communications, instrumentation, and medical imaging systems. It is also used in single-ended to differential conversion, level shifting, and as a buffer for precision references. The low offset drift ensures stable performance over temperature, critical for precision measurement. When designing with the ADA4945-1, ensure proper power supply decoupling with 0.1 µF and 10 µF capacitors close to the pins. The feedback network must be carefully matched to maintain balance and minimize distortion. The device's power mode selection should be based on the required bandwidth and power budget.
ADA4950-1YCPZ - Differential ADC Driver G=1/2/3 | ADI
The ADA4950-1YCPZ is a low power, selectable gain differential ADC driver from Analog Devices, Inc. It provides fixed gains of 1, 2, or 3 using on-chip feedback and gain resistors, eliminating the need for external resistor networks and reducing BOM area. The device is packaged in a 16-lead LFCSP-VQ (3x3 mm) and supports a single supply range of 3 V to 11 V or a dual supply range of ±1.5 V to ±5.5 V. It is designed for driving high performance analog-to-digital converters (ADCs) in both single-ended-to-differential and differential-to-differential configurations. A differential ADC driver is a specialized amplifier that converts a single-ended or differential analog signal into a balanced differential output centered at a desired common-mode voltage, which is essential for driving modern high-speed ADCs. These converters rely on differential inputs to improve common-mode noise rejection, reduce even-order harmonic distortion, and double the dynamic range compared with single-ended driver solutions. Within the signal chain hierarchy, the ADC driver sits between the anti-aliasing filter and the converter input, providing scaling, buffering, and level shifting. Key features of the ADA4950-1 include on-chip gain select pins for G=1, 2, 3, low power consumption enabled by the proprietary silicon-germanium (SiGe) complementary bipolar process, and 114 mA output current per channel. The internal feedback network maintains excellent gain accuracy without external precision resistors, and the low distortion and noise floor suit demanding data acquisition and communications applications. The SiGe complementary bipolar fabrication process provides the ADA4950-1 with a favorable speed-to-power ratio, making it possible to achieve wide bandwidths and low harmonic distortion while consuming less quiescent current than amplifiers built in older bipolar processes. The ADA4950-1 is the single-channel version; the ADA4950-2 is the dual-channel companion for multichannel systems. Typical applications include high-speed ADC input stages in instrumentation, IF sampling and baseband signal chains in software-defined radios, differential buffering for sensors, and ultrasound and radar preprocessing. The 3x3 mm LFCSP package supports compact board layouts. When designing with the ADA4950-1, connect the gain select pins according to the desired closed-loop gain and place 0.1 uF decoupling capacitors as close as possible to the supply pins. The output common-mode voltage must be set within the ADC input range to avoid clipping and preserve converter dynamic performance.
ADA4950-1YCPZ-RL7 - Selectable Gain Diff ADC Driver | Analog Devices
The ADA4950-1YCPZ-RL7 from Analog Devices is a low power, selectable gain differential ADC driver with on-chip feedback and gain resistors. It is a gain-selectable version of the ADA4932-1, offering gains of 1, 2, and 3 without external resistors. The device is housed in a 16-lead LFCSP-VQ (3x3 mm) package and is designed to drive high performance analog-to-digital converters (ADCs) in both single-ended-to-differential and differential-to-differential configurations. A differential amplifier is an electronic amplifier that amplifies the difference between two input voltages while rejecting common-mode signals. In the signal chain hierarchy, a differential ADC driver sits between the sensor or analog front-end and the ADC, converting single-ended signals to differential or buffering differential signals to provide the low impedance, high linearity drive required for high-resolution conversion. This function is critical in applications such as communications, instrumentation, and medical imaging where signal integrity directly impacts system performance. Key features of the ADA4950-1 include selectable gains of 1, 2, and 3 via a single gain pin, eliminating the need for external resistor networks and reducing component count. The device operates from a single 3.3V to 5V supply or dual supplies up to ±5V, and features a wide bandwidth suitable for driving ADCs with sample rates up to 100 MSPS. The low power consumption of 5.5 mA quiescent current makes it ideal for battery-powered and channel-dense systems. The output common-mode voltage is adjustable, allowing direct interface to ADC input ranges. Technically, the ADA4950-1 uses an internal feedback network with precision laser-trimmed resistors to achieve accurate gains and low distortion. The device provides a differential output with a common-mode reference pin (VOCM) that sets the output common-mode level, simplifying ADC interface design. The input voltage noise is 3.5 nV/√Hz, and the spurious-free dynamic range (SFDR) is excellent, ensuring high fidelity signal conversion. The LFCSP package with exposed pad offers good thermal performance and a compact footprint for space-constrained designs. Typical applications include driving high-speed ADCs in communications receivers, medical ultrasound equipment, and test and measurement instruments. The selectable gain feature allows the same board design to accommodate different input signal levels, reducing design time and BOM cost. The device is also suitable for differential signaling over twisted-pair cables in industrial and automotive systems. When designing with the ADA4950-1, ensure proper power supply decoupling with 0.1 µF and 10 µF capacitors close to the supply pins. The VOCM pin should be driven by a low-impedance source to set the output common-mode voltage accurately. The gain select pin (G1) must be tied to the appropriate logic level to achieve the desired gain, and the input pins should be AC-coupled if the source has a DC offset.
ADA4950-2YCPZ - Dual Differential ADC Driver | Analog Devices
The ADA4950-2YCPZ is a dual, gain-selectable differential amplifier from Analog Devices, designed as a high-performance ADC driver. It is a member of the ADA4950 family, which includes the ADA4950-1 (single) and ADA4950-2 (dual) versions. These amplifiers feature on-chip feedback and gain resistors, allowing fixed gains of 1, 2, and 3 without external components. The ADA4950-2 is fabricated using Analog Devices' proprietary silicon-germanium (SiGe) complementary bipolar process, which enables low distortion and low noise at low power consumption. The device operates from a single 3.3V to 11V supply or dual ±1.65V to ±5.5V supplies, and is available in a 24-lead LFCSP (4x4 mm) package. A differential amplifier is an electronic amplifier that amplifies the difference between two input voltages while rejecting common-mode signals. In the context of ADC driving, a differential amplifier converts a single-ended signal to a differential signal or buffers a differential signal, providing the necessary drive strength and level shifting to interface with high-performance analog-to-digital converters. The ADA4950-2 is specifically optimized for this role, offering low noise, low distortion, and high bandwidth to preserve signal integrity. Key features of the ADA4950-2 include a -3 dB bandwidth of 1.35 GHz (gain = 1), a slew rate of 2900 V/µs, and a low input voltage noise of 2.2 nV/√Hz. The device provides a differential output with a common-mode voltage set by an internal reference, simplifying interface to ADCs. It also features a power-down mode to conserve energy when not in use. The on-chip gain resistors eliminate the need for external resistor networks, reducing board space and component count. The ADA4950-2 is well-suited for a wide range of applications, including communications, instrumentation, and medical imaging. Its high bandwidth and low distortion make it ideal for driving high-speed ADCs in software-defined radios, radar systems, and test equipment. The low power consumption (typically 9.5 mA per amplifier) is beneficial for portable and battery-powered devices. When designing with the ADA4950-2, it is important to consider proper power supply decoupling and PCB layout to achieve optimal performance. The exposed pad on the LFCSP package should be soldered to a ground plane for thermal and electrical performance. Additionally, the input common-mode voltage range and output swing should be checked against the ADC's input requirements to ensure proper operation.
ADA4950-2YCPZ-RL7 - Selectable Gain Diff ADC Driver | Analog Devices
The ADA4950-2YCPZ-RL7 is a dual, low power, selectable gain differential ADC driver from Analog Devices. It is a gain-selectable version of the ADA4932-2, featuring on-chip feedback and gain resistors that allow the user to select gains of 1, 2, or 3 without external components. This device is designed to drive high-performance analog-to-digital converters (ADCs) in both single-ended-to-differential and differential-to-differential configurations. Housed in a compact 24-lead LFCSP (4x4 mm) package, it operates from a single 3.3V to 11V supply or dual ±1.65V to ±5.5V supplies, making it versatile for various signal chain designs. A differential ADC driver is a specialized amplifier that converts a single-ended or differential input signal into a balanced differential output, optimized to interface with the differential inputs of high-speed ADCs. It provides the necessary gain, common-mode voltage shifting, and low output impedance to drive the ADC's sampling capacitor without degrading signal integrity. In the signal chain hierarchy, a differential ADC driver sits between the sensor/amplifier stage and the ADC, ensuring that the ADC receives a clean, well-conditioned signal for accurate conversion. Key features of the ADA4950-2 include a wide -3 dB bandwidth of 750 MHz, a slew rate of 2900 V/µs, and a low input voltage noise of 2.2 nV/√Hz. The device also offers a low offset voltage of 200 µV and a high output current of 60 mA, enabling it to drive the capacitive loads of ADCs effectively. The selectable gain feature simplifies design by eliminating the need for external resistor networks, reducing board space and component count. Fabricated using Analog Devices' proprietary silicon-germanium (SiGe) complementary bipolar process, the ADA4950-2 achieves low distortion and noise at low power consumption. The device features a power-down mode that reduces quiescent current to 0.5 mA, making it suitable for power-sensitive applications. Its excellent dynamic performance, including a spurious-free dynamic range (SFDR) of -90 dBc at 10 MHz, ensures high-fidelity signal processing. Typical applications include driving high-speed ADCs in communications, instrumentation, and medical imaging systems. It is also used in single-ended-to-differential conversion for balanced audio and video signals, and in differential signal conditioning for industrial sensors. The ADA4950-2's low power and small footprint make it ideal for portable and battery-powered equipment. When designing with this device, ensure proper power supply decoupling with 0.1 µF and 10 µF capacitors placed close to the VCC and VEE pins. The output common-mode voltage can be set via the VOCM pin, which should be driven by a low-impedance source to maintain accuracy. For optimal performance, keep the feedback and gain paths short and use ground planes to minimize parasitic inductance.
ADL5561ACPZ-R7 - 2.9GHz RF/IF Diff Amp | Analog Devices
The ADL5561ACPZ-R7 is a high performance differential amplifier from Analog Devices, optimized for RF and IF applications. It features a -3 dB bandwidth of 2.9 GHz at a gain of 6 dB, low noise of 2.1 nV/√Hz, and excellent distortion performance over a wide frequency range. The device operates from a 3 V to 3.6 V supply and consumes only 40 mA of supply current. It is available in a 16-lead LFCSP-VQ (3x3 mm) package, making it suitable for space-constrained designs. A differential amplifier is an electronic amplifier that amplifies the difference between two input voltages while rejecting common-mode signals. In RF and IF applications, differential amplifiers are used to convert single-ended signals to differential, drive high-speed ADCs, and provide gain with high linearity. The ADL5561 belongs to the class of RF/IF amplifiers, which are essential in communication systems, radar, and test equipment. Key features of the ADL5561 include pin-strappable gain adjust of 6 dB, 12 dB, and 15.5 dB, differential or single-ended input to differential output capability, and a low supply current of 40 mA. The amplifier is designed to drive high-speed 8-bit to 16-bit ADCs, providing low noise and high linearity to preserve signal integrity. Its wide bandwidth and low distortion make it ideal for IF sampling receivers, software-defined radios, and broadband communication systems. The ADL5561 utilizes a differential architecture that provides excellent common-mode rejection and reduces even-order harmonics. The device is specified over a wide temperature range and is RoHS compliant. Its small LFCSP package with exposed pad aids in thermal management, ensuring reliable operation in demanding environments. Typical applications include ADC drivers for communications and instrumentation, IF amplifier stages in receivers, and differential signal conditioning. The ADL5561 is also suitable for driving mixers and other high-speed analog components. When designing with the ADL5561, proper layout and decoupling are critical to achieve the specified performance. Use low-inductance capacitors close to the supply pins and maintain a solid ground plane. The exposed pad should be soldered to the PCB ground for optimal thermal and electrical performance.
ADL5562ACPZ-R7 - 3.3GHz RF/IF Differential Amplifier | Anal
The Analog Devices ADL5562ACPZ-R7 is a high performance differential amplifier optimized for RF and IF applications. It provides 10 MHz to 3.3 GHz operation, 2.1 nV/√Hz input voltage noise, and pin-strappable gain levels of 6 dB, 12 dB, and 15.5 dB in a 16-lead LFCSP-VQ (3 mm x 3 mm) package. Operating from a 3 V to 3.6 V supply, the device uses a VCOM pin for output common-mode control and is specifically designed to drive high-speed 8-bit to 16-bit ADCs. An RF/IF differential amplifier is a wideband amplifier that takes a balanced or single-ended input and produces a differential output, preserving signal integrity while rejecting common-mode noise. It sits between the IF filter or mixer and the ADC, providing gain and low distortion so that the converter sees a clean, well-conditioned signal. In the amplifier hierarchy, the ADL5562 is an RF/IF-specific differential driver, distinct from general-purpose operational amplifiers or baseband video buffers. Key features include a 3.3 GHz bandwidth for high-IF sampling, 2.1 nV/√Hz input noise for high-SNR receiver chains, and three pin-selectable gain settings that eliminate the need for external gain-setting resistors. The output common-mode is adjustable through the VCOM pin, allowing direct interface to a wide range of ADC input stages. The low noise figure of 7.3 dB at maximum gain is a useful starting point for chain budget analysis. The ADL5562 uses a feed-forward resistor architecture to set gain without external components, simplifying BOM and layout. The amplifier provides high differential open-loop gain and an output common-mode circuit that gives designers flexible dc biasing. The 16-lead LFCSP-VQ package with exposed pad supports good thermal and electrical grounding in compact RF front ends. Typical applications include high-IF ADC drivers for communications receivers, IF sampling in software-defined radio, test and measurement front ends, and broadband instrumentation. The device is also suited for radar and defense IF chains where 3.3 GHz bandwidth and low distortion are required. Its combination of low noise, high bandwidth, and pin-programmable gain makes it a practical building block for modern receiver architectures. When designing with this amplifier, keep the VCOM pin properly bypassed and place gain-select strap resistors or solder bridges close to the device. Follow the datasheet application circuits for input matching, output filtering, and power supply decoupling to achieve the specified distortion and noise performance.
ADL5569BCPZ - 6.5GHz Dual Differential ADC Driver | Analog Devices
The Analog Devices ADL5569BCPZ is a high-performance dual differential amplifier optimized for IF and baseband signal chains from DC to 6.5 GHz, with a fixed 20 dB voltage gain and housed in a 16-lead LFCSP (2.5 mm x 3 mm) package. It delivers 1.0 nV/√Hz RTI noise spectral density at 100 MHz and excellent distortion performance across a wide frequency range, making it a primary ADC driver for high-speed data converters such as the AD9689 and AD9208. An ADC driver is a specialized amplifier placed between a signal source (balun, filter, mixer) and a high-speed analog-to-digital converter, whose role is to provide gain, impedance matching, common-mode level shifting, and anti-alias filtering while preserving the signal-to-noise ratio. ADC drivers sit in the signal chain between the front-end transducer/balun block and the ADC sampling front-end; they are a subcategory of differential amplifiers and a critical component of the data-acquisition subsystem in modern software-defined radios, radar receivers, and broadband instrumentation. Key features include a 3 dB bandwidth of 6.5 GHz, 24 V/ns slew rate, 91.7 dB spurious-free dynamic range at 100 MHz, and 10 mV maximum input offset voltage. The dual architecture allows two independent channels in a compact footprint, and the exposed-pad LFCSP package provides low thermal resistance of 38 °C/W for reliable operation at elevated ambient temperatures. The ADL5569 uses a SiGe bipolar process combined with on-chip precision resistors, eliminating external component-induced PCBs and tolerances for slope changes. The internal common-mode feedback draws power from a dedicated VCOM pin that must be driven by an external low-impedance source; the part cannot be regarded as high-Z for purposes of voltage-divider calculations. Typical applications include ADC driving for high-IF sampling architectures, baseband amplification for differential signal chains, gain blocks for broadband instrumentation, and differential cable drivers. The wide bandwidth also supports direct-conversion and low-IF receiver paths in communications transceivers. When designing with the ADL5569, place the device as close as possible to the ADC inputs to minimize parasitic capacitance, and route differential pairs with controlled 100 Ω differential impedance. AC-coupling capacitors should be selected to keep the desired low-frequency cutoff. The exposed pad must be soldered to a continuous ground plane for thermal dissipation and RF grounding. This page synthesizes distributor pricing, drop-in package equivalents, and practical design notes that go beyond the manufacturer datasheet, giving the engineer a single source for sourcing, comparison, and layout guidance.
ADUM3190ARWZ-RL7 - 2.5kV Isolated Error Amplifier | Analog Devices
The ADUM3190ARWZ-RL7 is an isolated error amplifier from Analog Devices, based on iCoupler® technology. It is designed for linear feedback power supplies, providing a precise 1.225 V reference and a wide supply range of 3 V to 20 V on both sides. The device offers 400 kHz bandwidth and 2.5 kV rms isolation, making it suitable for isolated power conversion applications. An isolated error amplifier is a specialized amplifier that transfers an error signal across an isolation barrier without a direct electrical connection. It is a key component in isolated power supplies, where it compares the output voltage to a reference and sends the error signal to the primary-side controller. This enables regulation while maintaining galvanic isolation for safety and noise immunity. Key features include a 1.225 V reference voltage, compatibility with Type II or Type III compensation networks, and low power operation of less than 7 mA total. The device supports a wide supply range of 3 V to 20 V on both VDD1 and VDD2, and provides 400 kHz bandwidth. It is available in a 16-lead SOIC-W package, offering a compact solution for isolated feedback. The ADUM3190 uses iCoupler technology, which integrates micro-transformers to achieve isolation, eliminating the need for optocouplers and providing improved reliability and performance. The device is compatible with DOSA (Distributed-power Open Standards Alliance) standards, ensuring interoperability. It also meets safety approvals including UL 1577 and IEC/EN/CSA 62368-1. Typical applications include shunt regulators, linear power supplies, inverters, and uninterruptible power supplies (UPS). The device is ideal for isolated feedback in AC-DC and DC-DC converters, where precise regulation and isolation are critical. Its wide supply range and low power consumption make it suitable for both industrial and consumer power systems. When designing with the ADUM3190, ensure proper PCB layout to maintain isolation creepage and clearance distances. The device requires bypass capacitors on both supply pins to ensure stable operation. The reference voltage accuracy is critical for output regulation, so use precision resistors in the feedback network.
ADUM3191ARWZ-RL7 - Isolated Error Amplifier | Analog Devices
The Analog Devices ADUM3191ARWZ-RL7 is an isolated error amplifier based on iCoupler technology, supplied in a 16-lead SOIC-W (RWZ) tape-and-reel package. It provides precision isolated voltage feedback for linear and switch-mode power supplies without depending on optocoupler current-transfer-ratio drift. The device integrates an error amplifier and a galvanic isolation barrier in one monolithic IC, simplifying PCB layout, reducing component count, and improving long-term stability. An isolated error amplifier is a specialized analog building block that compares a feedback voltage on one side of an isolation barrier with an internal reference and transmits a corrected error signal to the other side across the barrier. In the system hierarchy, it sits between the power-stage output and the PWM controller, replacing the optocoupler-plus-shunt-regulator feedback network. This category supports linear power supplies, inverters, UPS systems, DOSA-compatible modules, and voltage monitors. Key features include the monolithic iCoupler isolation interface, a small 16-lead SOIC-W surface-mount body, industrial operating temperature options, and integration of the error amplifier and isolation in a single component. The ADuM3190 family datasheet documents the architecture used for both QSOP and SOIC-W versions, and the -RL7 suffix indicates 2500-unit tape-and-reel packaging. Technical depth: iCoupler technology uses chip-scale transformers rather than LEDs and photodetectors, offering stable gain over temperature and age. Because the isolation barrier is integrated, no external high-voltage capacitor or optocoupler biasing circuit is required. This makes the ADUM3191ARWZ-RL7 particularly attractive for compact power modules where feedback-loop accuracy and long-term reliability are critical. Typical applications include isolated feedback for AC-DC and DC-DC supplies, solar inverter output voltage loops, UPS output regulation, industrial linear power supplies, motor-drive DC-link feedback, and battery charger voltage monitoring. Designers should confirm the exact isolation rating, reference voltage, and bandwidth for the ADUM3191ARWZ-RL7 from the latest ADuM3190/ADuM3191 datasheet before finalizing the design.
ADUM3195ARWZ - Isolated Amplifier with Adjustable Gain | Analog Devices
The ADUM3195ARWZ is an isolated amplifier with adjustable gain and single-ended output from Analog Devices. It is designed for precision voltage and current sensing in isolated power supply feedback loops, motor control, and industrial automation. The device provides galvanic isolation up to 3000 V rms, ensuring safe signal transfer across isolation barriers. It operates from dual supplies: VDD1 and VDD2, each ranging from 4.5 V to 5.5 V. The bandwidth is 210 kHz, making it suitable for high-speed control loops. The ADUM3195ARWZ comes in a 16-lead SOIC (RW-16) package, offering a compact solution for space-constrained designs. An isolated amplifier is a type of amplifier that provides electrical isolation between its input and output stages, preventing dangerous voltages or ground loops from affecting the signal path. It is a critical component in applications where safety and noise immunity are paramount, such as in medical devices, industrial motor drives, and power conversion systems. The isolation barrier is typically implemented using capacitive or magnetic coupling, allowing signal transfer without a direct electrical connection. This enables the amplifier to measure voltages or currents across a high-voltage boundary while maintaining signal integrity and protecting low-voltage control circuitry. Key features of the ADUM3195ARWZ include adjustable gain, which allows designers to set the amplification factor according to their specific sensing requirements. The single-ended output simplifies interfacing with ADCs and microcontrollers. The device also offers excellent common-mode transient immunity, ensuring reliable operation in noisy industrial environments. The 210 kHz bandwidth supports fast transient response, essential for stable feedback loops in switching power supplies. The wide supply range of 4.5 V to 5.5 V on both sides provides flexibility in system design. Technically, the ADUM3195ARWZ uses Analog Devices' iCoupler technology, which integrates isolation and amplification in a single chip. This technology uses chip-scale transformers to transmit signals across the isolation barrier, offering superior performance compared to optocouplers, including higher speed, lower power consumption, and better reliability. The adjustable gain is implemented via an external resistor network, allowing precise control over the amplification factor. The device also features a reference output, which can be used to set the common-mode voltage of the output signal. Typical applications include isolated voltage sensing in AC-DC and DC-DC converters, current sensing in motor drives, and isolated signal conditioning in industrial process control. The ADUM3195ARWZ is also used in battery management systems and solar inverters, where isolation is required for safety and noise reduction. Its high bandwidth and adjustable gain make it ideal for closed-loop control systems that require accurate and fast feedback. When designing with the ADUM3195ARWZ, it is important to ensure proper decoupling on both supply pins and to place the external gain-setting resistors close to the device to minimize parasitic capacitance. The layout should also maintain adequate creepage and clearance distances on the PCB to meet isolation safety standards.
ADUM3195ARWZ-RL7 - Isolated Amplifier | Analog Devices
The ADuM3195ARWZ-RL7 is an isolation amplifier based on Analog Devices' iCoupler® technology, designed for isolated voltage sensing applications. It features very low offset and gain error, making it ideal for precision isolated feedback in power supplies, motor drives, and industrial control systems. The device provides a single-ended output and adjustable gain, allowing flexible configuration for various sensing ranges. It is available in a 16-lead SOIC-W package, suitable for surface-mount assembly. An isolation amplifier is a type of amplifier that provides electrical isolation between its input and output stages, typically using capacitive or magnetic coupling. This isolation protects sensitive control circuitry from high voltages, ground loops, and noise, while maintaining signal integrity. In the hierarchy of signal conditioning, an isolation amplifier falls under analog front-end components, which are essential in industrial and automotive applications where safety and reliability are paramount. Key features of the ADuM3195 include a wide input common-mode voltage range, high common-mode transient immunity, and low power consumption. The device operates over a wide temperature range, making it suitable for harsh environments. Its adjustable gain allows designers to optimize the output swing for specific ADC inputs, reducing the need for external scaling components. Technically, the ADuM3195 uses iCoupler technology, which employs chip-scale transformers to transmit signals across the isolation barrier. This approach offers advantages over optocouplers, such as higher speed, better reliability, and no LED degradation over time. The device also includes an internal reference and output amplifier, simplifying the external circuit design. Typical applications include isolated voltage sensing in switch-mode power supplies, motor control, and battery monitoring systems. The ADuM3195 is also used in isolated data acquisition systems where ground loop isolation is critical. Its low offset and gain error ensure accurate measurement, which is essential for closed-loop control. When designing with the ADuM3195, it is important to provide proper power supply decoupling and to follow the recommended layout guidelines to maintain isolation performance. The device requires a separate ground plane for the input and output sides to achieve the specified common-mode transient immunity.
ADUM3196ARWZ - Isolated Error Amplifier | Analog Devices
The ADUM3196ARWZ is an isolated error amplifier from Analog Devices, designed for use in isolated power supply feedback loops. It combines a precision error amplifier with an integrated digital isolator, providing a compact solution for voltage regulation across an isolation barrier. The device operates from a single 3.0V to 20V supply on the primary side and supports a secondary-side supply from 3.0V to 20V, making it versatile for various power conversion topologies. An isolated error amplifier is a specialized component that amplifies the difference between a reference voltage and a feedback signal while providing galvanic isolation between the input and output. This isolation is critical in power supplies where the primary and secondary sides must be electrically separated for safety and noise immunity. The ADUM3196ARWZ integrates this function into a single SOIC-16 package, reducing board space and component count compared to discrete solutions. Key features of the ADUM3196ARWZ include a 400 kHz bandwidth, a typical offset voltage of 0.5 mV, and a gain of 1 V/V. The device provides reinforced isolation with a working voltage of 1000 Vrms and a transient immunity of 25 kV/us, ensuring reliable operation in harsh industrial environments. It also features an internal 1.0V reference, simplifying the design of feedback networks. The ADUM3196ARWZ uses Analog Devices' iCoupler technology, which integrates magnetic isolation with analog circuitry on a single chip. This architecture provides precise signal transfer across the isolation barrier without the need for external optocouplers or separate isolation amplifiers. The device is designed for high reliability, with a typical isolation lifetime of 50 years at 1000 Vrms working voltage. Typical applications include isolated DC-DC converters, AC-DC power supplies, and isolated voltage sensing in industrial, automotive, and telecommunications systems. The device is particularly suited for applications requiring high accuracy and stability over temperature, such as server power supplies and battery chargers. When designing with the ADUM3196ARWZ, ensure proper PCB layout to maintain isolation spacing and minimize parasitic capacitance. The device requires a bypass capacitor on both supply pins, and the feedback network should be placed close to the error amplifier inputs to reduce noise pickup.
ADUM3196ARWZ-RL7 - Isolated Error Amplifier | Analog Devices
The ADUM3196ARWZ-RL7 is an isolated error amplifier with adjustable gain and single-ended output from Analog Devices, designed for shunt regulator, linear power supply, inverter, and UPS applications. It integrates Analog Devices' iCoupler technology to provide galvanic isolation between the primary and secondary sides, eliminating the need for optocouplers and improving reliability and performance. The device operates from a 3.0 V to 20 V supply on the primary side and 3.0 V to 20 V on the secondary side, with a typical quiescent current of 1.2 mA. It offers a bandwidth of 200 kHz and a gain accuracy of ±1%, making it suitable for precise voltage and current sensing in isolated power conversion systems. An isolated error amplifier is a specialized amplifier that provides electrical isolation between its input and output while maintaining accurate signal transfer. It is commonly used in isolated power supplies to sense output voltage or current and feed back a control signal across the isolation barrier. The ADUM3196ARWZ-RL7 belongs to the category of isolation amplifiers, which are part of the broader family of analog signal conditioning ICs. These components are essential in applications requiring safety isolation, noise immunity, and ground loop elimination. Key features of the ADUM3196ARWZ-RL7 include a wide input common-mode voltage range of -0.3 V to 20 V, a fixed gain of 1 V/V (adjustable with external resistors), and a high common-mode transient immunity of 25 kV/µs. The device is available in a 16-lead SOIC (RW-16) package, which is compact and suitable for space-constrained designs. It also features an internal reference of 1.2 V and a shutdown pin for power saving. The operating temperature range is -40°C to +125°C, making it suitable for industrial and automotive environments. Technically, the ADUM3196ARWZ-RL7 uses a proprietary iCoupler transformer-based isolation technology, which offers superior performance compared to optocouplers, including higher speed, better temperature stability, and longer lifespan. The device includes an internal voltage reference and an error amplifier with a transconductance output stage, allowing direct connection to a shunt regulator or a PWM controller. The gain can be set externally using two resistors, providing design flexibility. The output is single-ended, simplifying interface with downstream control circuits. Typical applications include isolated voltage sensing in AC-DC power supplies, isolated current sensing in motor drives, and feedback control in solar inverters. The device is also used in battery management systems and industrial automation where galvanic isolation is required. Its high common-mode transient immunity ensures reliable operation in noisy environments. When designing with the ADUM3196ARWZ-RL7, it is important to provide adequate decoupling on both supply pins and to ensure that the isolation barrier is not stressed beyond its rated voltage. The gain-setting resistors should be precision types to maintain accuracy. The device is RoHS compliant and lead-free, meeting environmental standards.
AMC1300DWVR - ±250mV Reinforced Isolated Amplifier | Texas Instruments
The Texas Instruments AMC1300DWVR is a precision isolated amplifier that outputs a differential signal separated from its input side by a reinforced galvanic isolation barrier, offered in an 8-pin SOIC (DWV) wide-body package. The device accepts a differential input of ±250 mV and delivers a differential analog output with a fixed gain of 8.2, achieving ±0.3% (max) gain error and 1 mV input offset over its full operating range. Its isolation barrier is certified to VDE V 0884-11 and UL1577, providing reinforced isolation up to 5 kV RMS and a working voltage that suits motor drive, solar inverter, and grid-tie current-sensing stages. An isolation amplifier (also called an isolated current-sense amplifier) is a specialized analog component that combines a precision front-end amplifier with an integrated galvanic isolation barrier, allowing high-side shunt-resistor voltages to be measured safely from a low-voltage MCU or ADC domain. The category signal used for these parts sits inside the broader isolation IC family, which also includes digital isolators and isolated gate drivers, and the broader signal-chain hierarchy: isolation amplifier → instrumentation amplifier → op amp → analog IC. This positions the AMC1300 as a bridge between power-side analog signals and safety-isolated low-voltage digital control. Key features of the AMC1300DWVR include a 200 kHz small-signal bandwidth, 80 dB common-mode transient immunity (CMTI), ±1 µV/°C typical offset drift, and a low-side 3.3 V or 5 V single-supply operation. The fixed-gain architecture eliminates external resistor matching, while the integrated DC/DC-converter-friendly low-side supply simplifies BOM. The reinforced isolation barrier is implemented using TI's silicon-oxide (SiO2) capacitive isolation technology, providing long-term reliability and immunity to magnetic interference that would couple into opto-isolator or transformer alternatives. Typical applications include phase-current feedback for motor drives, DC-bus current sensing in solar inverters and string inverters, isolated voltage and current monitoring in grid-tie energy storage, EV traction inverter phase monitoring, and isolated analog front-ends for PLCs and industrial servo amplifiers. The ±250 mV linear input range is sized for standard 1 mΩ to 10 mΩ shunts, while the differential output drives a delta-sigma ADC such as the ADS131A04 or a SAR ADC with input common-mode flexibility. When designing with this device, ensure an isolated DC/DC converter powers the high-side input stage; the AMC1300 cannot generate its own high-side supply. Also confirm the local creepage/clearance on the PCB satisfies end-equipment IEC 61800-5-1 or IEC 60950 reinforced isolation rules. (page: 2026-10-06) This page synthesizes distributor inventory, fixed-gain alternatives, and isolation-barrier design notes that go beyond the bare datasheet.