New Tiny amplifiers minimize footprint and maximize performance in space-constrained designs

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ByAbhiemanyu Pandit 0

New Tiny amplifiers minimize footprint and maximize performance in space-constrained designs

Texas Instruments released new small sized current-sense amplifier in a leaded package and small, accurate comparators with an internal 1.2V or 0.2V reference. The new INA185 current-sense amplifier, and open-drain TLV4021 and push-pull TLV4041 comparators help engineers to design smaller, simpler and more integrated systems while maintaining high performance. The amplifiers can be paired to with one of the comparators to create small and high performing overcurrent detection solution in the industry.

 

The new devices are optimized for a variety of personal electronics, enterprise, industrial and communications applications, including peripherals, docking stations and notebooks. The INA185 current-sense amplifier achieve high precision in less space with and measures only 1.6 mm by 1.6 mm (2.5 mm2). The device comes in the small-outline transistor (SOT)-563 package and are 40% smaller than the existing packages. The INA185 improves system efficiency with a 55-µV input offset, 350-kHz bandwidth and 2-V/µS slew rate. The current-sense amplifier increase performance and protection with precisely matched resistive gain network and response time of just 2 µS.

 

On the other hand, the TLV4021 and TLV4041 comparators add functionality in the same form factor and enable high-performance design. The comparators are available in an ultra-small die-size ball-grid array (DSBGA) 0.73-mm-by-0.73-mm package. The comparators can monitor voltages as low as the 0.2-V internal reference, and feature a high threshold accuracy of 1% across a full temperature range from -40°C to +125°C. Low 2.5-µA quiescent current delivers extended battery life for smart, connected devices. The comparators feature speedy response with fast propagation delay as low as 450 nS which further reduces latency, enabling power-conscious systems to monitor signals and respond quickly to fault conditions.

 

For tools and design, the designers can download TINA-TI SPICE models and reference designs to simulate system designs and predict circuit behavior when using the INA185 current-sense amplifier and TLV4021 and TLV4041 comparators. Also the designers can go with the INA185EVM and TLV4021-41EVM evaluation modules for quickly and easily evaluate the new amplifiers.

 

The Production quantities of the INA185 are now available through the TI store and authorized distributors in a SOT-563 package, measuring 1.6 mm by 1.6 mm. Pricing starts at US$0.65 in 1,000-unit quantities. Production quantities of the push-pull TLV4041 and preproduction samples of the open-drain TLV4021 comparators are now available through the TI store and authorized distributors in an ultra-small DSBGA package, measuring 0.73 mm by 0.73 mm. Pricing for each comparator starts at US$0.39 in 1,000-unit quantities.

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