Medical Applications Guide (Rev. B - Mouser Electronics

76 Medical Instruments➔Medical Instrumentation➔ In This SectionMedical Instrumentation 76Component Recommendations for Medical Instrumentation 79Medical InstrumentationMedical instruments are available today for a wide variety of differentapplications. Typical applications include instruments for medicallaboratories, analytical instruments for in-vitro diagnostics, surgicalinstruments and dental equipment.As all of these applications are very specific in design and systemrequirements, it is difficult to provide general information pertainingto these applications. However, medical instruments have one thingin common: the need for high-precision circuits to support the preciseacquisition of pressure, light and temperature values. This includesthe acquisition of small capacitances and currents.TI’s portfolio provides many integrated circuit solutions for theseapplications. The precision linear portfolio meets the need for typicalICs by offering low bias, precision and high-speed amplifiers withJ-FET inputs, zero-drift operational amplifiers for precision-over-lifetimeapplications and low-noise amplifiers for sensitive measurementcircuits. The data acquisition portfolio complements these componentby offering high-resolution, low-noise analog-to-digital and digital-toanalogdata acquisition systems. The ultra-low-power MSP430microcontroller family, or a member of one of the three DSP families,TMS320F28x, TMS320DM64x and TMS320C64x, can easilymanage signal processing tasks. TI’s wide portfolio of interface ICs,both wired and wireless, can facilitate many data transmission tasks.Featured Products• Low-bias, precision J-FET amplifier: OPA827• Low-bias, high-speed amplifier: THS4631• Auto-zero, low-drift amplifier: OPA735• Auto-zero, low-drift, high-speed amplifier: OPA380• Precision, low-noise bipolar amplifier: OPA211• Sensor signal conditioner PGA309• 16-channel, fast cycling 24-bit, low-noise A/D converter: ADS1258• Single-channel, 24-bit ADC with DC accuracy and AC performance:ADS1271• 16-bit, ±10V input, single-supply family of SAR A/D converters:ADS8507, ADS8509, ADS8513• 16-bit, 4MSPS parallel output SAR A/D converter: ADS8422• 16-bit, 2MSPS A/D converter with LVDS interface: ADS8410• High-accuracy 16-bit D/A converter: DAC8820• 12-bit, 4-channel D/A converter with SPI interface: DAC7554Medical Applications Guide www.ti.com/medicalTexas Instruments 2Q 2007