TI launches new line of low-voltage precision op amps for sensor measurement
DALLAS (Jan. 31, 2011) – Texas Instruments Incorporated expanded its 1.8-V precision operational amplifier (op amp) portfolio with a new line of op amps for low-noise, high-impedance sensor measurement. The first product in the OPAx320 family, the two-channel OPA2320, provides 20 MHz of gain bandwidth and 0.2 pA input bias current (Ib) to enable very high accuracy and dynamic range for high-impedance optical and chemical sensor front ends, programmable logic controllers, motor control loops, and test and measurement equipment.
For more information and to order an OPA2320 sample, visit
www.ti.com/opa2320-preu.
Key features and benefits
The OPAx320 family features
the most power-efficient, wideband, low-noise precision op amps from TI. The
products:
- Offer a maximum input bias current of 0.9 pA to support high-impedance
sensor signal conditioning.
- Deliver precision with zero crossover distortion, delivering a maximum
offset voltage of 150 uV, high common mode rejection rate of 114 dB and
rail-to-rail input/output to drive low-power, successive approximation (SAR)
analog-to-digital converters (ADCs), such as TI’s ADS8319, ADS8327 and
ADS7279, up to 1 MSPS.
- Combine low noise of 7nV/?Hz at 10 kHz and wide gain-bandwidth of 20 MHz
at a low quiescent current of 1.45 mA per channel for use as an active
filter in automated test equipment.
Tools and support
TI offers a variety of free tools and
support to speed development with the OPAx320 family, including:
- A SPICE model for designing, testing, and troubleshooting a broad
variety of basic and advanced circuits, including complex architectures,
without any node or number of device limitations.
- Software for analysis, application and calculation utilities, including
Analog Filter Designer, FilterPro, and calculators for decibel,
frequency/wavelength and op amp gain stage.
Availability and pricing
The OPA2320 is available now in a 3-mm x 4.9-mm MSOP-8 package. Suggested
retail pricing starts at $1.25 for 1,000-unit quantities. 4.9-mm x 6-mm SOIC-8
and 3-mm x 3-mm SON-8 package options will be available in March.
The
single-channel OPA320 will be available in April in a 3.9-mm x 2.8-mm SOT23-5
package. Suggested retail pricing starts at $0.80 for 1,000-unit quantities.
Learn more about TI’s amplifier portfolio by visiting the links
below:
201102080421.2.2011Test & measurementTexas Instruments