company blog about Long-Term Cash Acquisition: Texas Instruments INA790BEVM Ultra-Precision Current Sense Amplifier Evaluation Module

Shenzhen Mingjiada Electronics Co., Ltd. is consistently purchasing Texas Instruments INA790BEVM current sense amplifier evaluation boards.

Product Overview Of INA790BEVM
The INA790BEVM is a specialized evaluation module tailored for Texas Instruments' INA790B ultra-precision current sense amplifier, serving as the flagship development platform within TI's integrated current sense amplifier product line. This evaluation board integrates 75A EZShunt™ current sensing technology, seamlessly combining high-precision shunt resistors with enhanced PWM suppression capabilities to deliver a plug-and-play current measurement solution for power management systems, motor drivers, and industrial automation equipment.

As a single-channel current sensing evaluation board, the INA790BEVM supports bidirectional current sensing for both high-side and low-side configurations. Its independent -4V to +110V common-mode voltage range ensures exceptional measurement accuracy even in complex electromagnetic environments.

Core Chip INA790B Technical Specifications
EZShunt™ Integrated Technology
Built-in 75A Precision Shunt: Integrates a 400μΩ low-resistance shunt resistor supporting ±75A continuous current (at 25°C ambient) and ±50A high-temperature current (at 125°C), eliminating the need for external high-cost precision resistors and significantly reducing system BOM costs
Ultra-Low Temperature Drift: Shunt resistor temperature drift of only ±100ppm/°C ensures measurement accuracy and long-term stability across the full temperature range (-40°C to +125°C).
Ultra-Low Parasitic Inductance: 2nH Kelvin connection design effectively suppresses high-frequency switching noise and ringing, making it particularly suitable for motor drive applications with switching frequencies up to 125kHz.
Enhanced PWM Suppression Functionality
Ultra-High Common-Mode Rejection Ratio: DC CMRR up to 160dB, AC CMRR at 50kHz is 114dB. Combined with enhanced PWM suppression technology, it delivers clean and accurate current signals in high-interference environments like switching power supplies and motor drivers
Wide common-mode voltage range: Ultra-wide range from -4V to +110V, operates independently of supply voltage, supporting current sensing requirements for 12V to 400V bus voltage systems
Configurable gain system
Gain can be flexibly adjusted from 20mV/A to 400mV/A via an external resistor divider network:
20mV/A gain: Suitable for high-current scenarios (e.g., electric vehicle main drive inverters)
100mV/A gain: Universal industrial motor control and servo drives
400mV/A gain: High-precision low-current detection (e.g., battery management systems, BMS)

INA790BEVM Evaluation Board Hardware Design Features
Convenient Test Interfaces
Large-size terminal blocks: High-current-carrying terminals facilitate connection of heavy-gauge wires, supporting 75A continuous current testing
Extensive Test Points: On-board test points for all critical signals provide easy access to every INA790B pin, facilitating oscilloscope probe and multimeter measurements
Reference Voltage Configuration: Offers a flexible platform for evaluating different output reference voltage setups, supporting single- or dual-supply systems
Thermal & Reliability Design
Large Copper Planar Layer: Optimized PCB thermal design ensures reliable heat dissipation and long-term stability under 75A high-current conditions
Open-Drain Temperature Alarm: Outputs an alarm signal when chip junction temperature exceeds 160°C, implementing hardware-level over-temperature protection
Automotive-Grade Temperature Range: -40°C to +125°C operating temperature meets AEC-Q100 Grade 1 certification requirements, suitable for automotive electronic systems
Complete Development Resources
Detailed technical documentation provided with the evaluation board:
Schematic and PCB layout files: Provide best-practice layout references to guide customers through design migration from evaluation to mass production
BOM list: Clearly displays all component part numbers, packages, and supplier information
User manual: Covers hardware connections, gain configuration, testing procedures, and troubleshooting

Mingjiada Electronics Acquisition Services: Professional, Efficient, Reliable
We understand that every evaluation board holds value for technological exploration. Mingjiada Electronics offers not just buyback, but a comprehensive asset monetization solution.
Precise Value Assessment: Our dedicated market and technical teams consider not only base model pricing but also technological advancement, physical condition, and market scarcity to provide competitive, fair quotes ensuring your technical assets receive their due value.
Professional Inspection Process: We eliminate any defective or counterfeit items. All recovered evaluation boards undergo rigorous physical inspections and basic functionality verification to guarantee legitimate sourcing and operational integrity, ensuring quality for subsequent circulation.

Efficient Liquidation Process:
Information Submission: Simply provide the model (INA790BEVM), quantity, condition, and origin details.
Rapid Quotation: Our evaluation team delivers clear pricing within the shortest timeframe.
Inspection & Payment: We support shipping or on-site pickup. Upon successful inspection, we guarantee prompt payment in full via cash or wire transfer, ensuring secure fund delivery.
Global Network Support: With service hubs in Hong Kong, Japan, the U.S., and beyond, we deliver seamless, standardized cross-border transaction services regardless of your inventory's location.

Contact Information
Recycling Hotline: +86 13410018555 (Mr. Chen / Evaluation Team)
Email: sales@kmjd.com
Official Website: www.integrated-ic.com
Company Address: Room 1239-1241, Block B, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province