Date: 10/11/2011

1mA consuming op-amps with 205 MHz BW and 560 V/us slew rate

Texas Instruments Incorporated (TI) has expanded its portfolio of general-purpose operational amplifiers (op amps) with the introduction of new single and dual analog-to-digital converter (ADC) drivers. TI claims its OPAx836 op amps use 33 percent less power than similar solutions while providing more than twice the bandwidth, 15 times faster slew rate, 40 times better total harmonic distortion (THD) and 75-percent higher precision.

Other key features of the OPAx836 ADC drivers:
power consumption of 1 mA per channel while providing 205 MHz of bandwidth for driving low-power SAR and delta-sigma ADCs.
Offers 205 MHz of bandwidth with a slew rate of 560 V/us, THD of 130 dBc and noise of 4.6 nV/rtHz.
Typical input-offset voltage of 0.065 uV and drift of 1.1 mV/degree C for accurate measurement.
Package: 2-mm x 2-mm WQFN package with integrated gain setting resistors.

"Customers designing portable industrial measurement devices, until now, have been limited by op amp performance when designing with 12-, 14- and 16-bit precision SAR and delta-sigma ADCs in their high-precision applications, such as ultrasonic flow meters, smart pumps and power quality meters," said Steve Anderson, senior vice president of TI's High Performance Analog business. "By providing the industry's highest performance-to-power ratio, the OPAx836 op amps allow customers to drive these data converters to data sheet performance while providing ultra-low power consumption. These ADC drivers allow designers to extend the battery life of portable industrial and medical devices while delivering high accuracy."

Availability:
Samples and production quantities of the single-channel OPA836 and OPA835 are available in two package options: 1) a 10-pin, 2-mm x 2-mm WQFN, or 2) a 6-pin, 3-mm x 3-mm SOT23.
Samples and production quantities of the dual OPA2836 and OPA2835 are available today in three package options: 1) an 8-pin, 4-mm x 5-mm SOIC, 2) a 10-pin, 3-mm x 3-mm MSOP, or 3) a 10-pin, 2-mm x 2-mm WQFN.

Price:
Suggested retail pricing for 1,000 units is $0.90 for the OPA836 and $ 0.85 for the OPA835.
Suggested retail pricing for 1,000 units is $1.50 for the OPA2836 and $1.35 for the OPA2835.

For more information visit: www.ti.com