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Category: Amplifiers Reference Designs

40 V to 400 V Uni-directional Current/Voltage/Power Monitoring Reference Design

This verified design can accurately measure current: voltage and power on a bus as high as 400 V using an I2C- or SMBUS-compatible interface. This design is targeted towards industrial applications where there is a need to measure system current accurately with bus voltages greater than 40 Volts such as Solar inverters: HEV/EV systems and Source generation for AC/DC electronic loads and power…
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40V Dual 1A Power Module w/Low Noise LDOs Split-Rail (±5V) Output Voltages Reference Design

The PMP8372 design is optimized for small size and uses the TPS84250 step-down power module on the top- side with the TPS84259 negative output power module on the bottom-side to implement both positive and negative output voltages from a 12V/24V source. The output voltages can be adjusted from +/-3V to +/-15V with resistor changes. The design is capable of 1-A outputs. The positive-input TPS7A4700…
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48V 3-Phase Inverter with Shunt-based In-line Motor Phase Current Sensing Reference Design

The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode voltage transients during PWM switching. The INA240 bi-directional current-sense amplifier overcomes this…
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48V/10A High Frequency PWM 3-Phase GaN Inverter Reference Design for High-Speed Drives

Low voltage: high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A half-bridge GaN power modules LMG5200 and uses shunt based phase current sensing. Gallium nitride (GaN)…
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50 mA-20 A: Single-Supply: Low-Side or High-Side Current Sensing Solution

This TI Reference Design implements a low-side or high-side wide dynamic range current sensing solution.  Wide dynamic range is achieved by a unique gain switching method.  Switching gain in hardware allows a faster response time than what can typically be achieved with other methods.  The implementation utilizes the INA225: high-speed: multiple gain current shunt monitor along with the INA300…
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50-Ohm 2-GHz Oscilloscope Front-end Reference Design

This reference design is part of an analog front-end for 50Ω-input oscilloscope application. System designers can readily use this evaluation platform to process input signals from DC to 2 GHz in both frequency-domain and time-domain applications.
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66AK2G02 DSP + ARM Processor Audio Processing Reference Design

The TIDEP0069 TI Reference Design is a reference platform based on the 66AK2G02 DSP + ARM processor  System-On-Chip (SoC) and companion AIC3106 Audio codec and enables a quick path to audio processing algorithm design and demonstration. This audio solution design includes real time application software using the Processor SDK TI RTOS software that demonstrates audio processing block on the DSP to…
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75V/10A Protected Full-Bridge Power Stage Reference Design for Bipolar Stepper Drives

Stepper drives are used in many applications operating typically from 12VDC to 48VDC. TI offers a rich family of stepper motor driver solutions with industry standard step/direction and parallel control interfaces. For applications which require higher torque and power: often voltages above 48VDC: up to 100VDC are used. The TIDA-00210 provides a solution for such stepper drives. The TIDA-00210…
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75V/10A Protected Full-Bridge Power Stage Reference Design for Brushed DC Drives

Low voltage brushed DC drives are used in many applications. TI offers a rich family of brushed DC motor driver solutions with flexible control interface options for one or more brushed DC motors up to 60V.  For applications which require higher torque and power: often voltages above 60VDC are used. The TIDA-00365 protected full-bridge operates at nominal 75VDC input and 10A output current and…
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8-ch Parallel 0.5A Low Side Digital Output Module for PLC Reference Design

Digital Output Modules are a standard component in a PLC/PAC or DCS to control actuators: motors and other resistive: capacitive or inductive loads. Customers will benefit from this integrated protected low side driver with parallel interface as it makes the MCU interface easy to test together with a Beaglebone Black . The design is capable of delivering 0.5A on all 8 channels in a small form…
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85VAC-265VAC Input 24V/240W Output 90% Efficient PFC + LLC

The PMP5141 reference design provides a 24V/10A output with power factor correction from a universal AC input voltage range. This design uses the UCC28051 to control the front end PFC boost stage. The output of the PFC is followed by a UCC25600 LLC resonant half-bridge. The total efficieny: from input to output is over 92% from a 220VAC/50Hz input and over 90% from a 120VAC/60Hz input.
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A High-Fidelity Headphone Amplifier for Current Output Audio DACs Reference Design

This TI Precision Verified Design circuit converts the differential current output of audio DACs to a single-ended voltage capable of driving low impedance headphones. This design is capable of meeting the high-fidelity performance levels currently being popularized in cell phones and portable audio players.
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AC Coupled Comparator Reference Design: Input 2kHz to 32MHz

This TI Reference Design provides the theory: component selection: and simulation of a single supply comparator required to use AC coupling to detect sine waves or square waves. Often this is needed due to differences in ground between two different modules. Whenever AC coupling is involved into single supply circuitry negative voltages become a concern. Excessive negative voltages on comparators…
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Active Integrator for Rogowski Coil Reference Design with Improved Accuracy for Relay and Breaker

The TIDA-00777 TI Design shows an active integrator design that covers wide input current range for Rogowski Coil with excellent accuracy: linearity: stability and repeatability. The integrator uses a precision amplifier with very low offset and temperature drift. Two configurations of the integrator are shown; one for precision measurement with less than 3O phase error and the other for fast…
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Active Volume Control for Professional Audio

This TI Verified Design implements a split-supply: high-performance volume control which attenuates a professional line-level audio signal with minimal distortion and noise. An input buffer preserves the behavior of the system independent of the audio input source impedance. A radio frequency (RF) filter on the circuit front end removes noise from outside the audio band: while a bidirectional…
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ADC Driver Reference Design Improving Full Scale THD Using Negative Supply

The TIDA-01052 reference design aims to highlight system performance increases seen using a negative voltage rail on the analog front end driver amplifiers rather than ground. This concept is relative to all analog front ends: however this design is aimed specifically at automatic test equipment.
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ADC Driver Reference Design Optimizing THD: Noise: and SNR for High Dynamic Range Instrumentation

The TIDA-01053 is an ADC driver reference design to optimize the THD: noise and the full system SNR for the high dynamic range instrumentation. The high capacitive nature of the ADC input presents some unique challenges for driver design and part selection process to ensure stability: low noise: high current drive capability and low harmonic distortion performance at the same time. This reference…
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Altera Cyclone III FPGA Power Management Reference Design

The Cyclone III power management design is a complete: non-isolated power solution and provides all 5 required rails for powering the FPGA. The design also includes complete power solutions for DDR Memory VTT and VDDQ rails and USB power. This design is optimized to power the Altera 3C25F324 starter kit.
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Always-on Low-power Gas Sensing with 10+ Year Coin Cell Battery Life Reference Design

The TIDA-00756 TI Design uses nano-power operational amplifiers: comparators: system timers: temperature sensors: and the SimpleLink ultra-low power 2.4-GHz wireless microcontroller (MCU) platform to demonstrate an ultra-low power carbon monoxide detector implementation. These technologies lead to an extremely long battery life: over 10 years with a standard CR2032 lithium ion coin cell battery:…
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Analog Front End for Motor Electronic Overload Relays with Enhanced Current Range

This reference design is the analog front end (AFE) for an electronic overload relay: used for monitoring and protecting motors from overcurrent or undercurrent events. It is an ideal tool for developers creating overload relays for sensitive AC motors in industrial applications. This programmable gain amplifier (PGA) based analog front end is intended to be an easy evaluation platform for an…
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