THS4531/31A Fully-Differential Op Amps

Texas Instruments' ultra-low power 0.25 mA, RRO, fully differential amplifier

Image of Texas Instruments' THS4531/31A Fully-Differential Op AmpsTexas Instruments' THS4531/31A are low-power, fully-differential op amps with an input common-mode range below the negative rail and rail-to-rail output. The devices is designed for low-power data acquisition systems and high density applications where power consumption and dissipation is critical.

The devices feature accurate output common-mode control that allows for DC coupling when driving analog-to-digital converters (ADCs). This control, coupled with the input common-mode range below the negative rail and rail-to-rail output, allows for easy interface from single-ended ground-referenced signal sources to successive-approximation registers (SARs), and delta-sigma (ΔΣ) ADCs using only single-supply 2.5 V to 5 V power.

  • Ultra low power:
    • Voltage: 2.5 V to 5.5 V
    • Current: 250 µA
    • Power-down mode: 0.5 µA (typ)
  • Fully-differential architecture
  • Bandwidth: 36 MHz
  • Slew rate: 200 V/µs
  • THD: -120 dBc at 1 kHz (1 VRMS, RL= 2 kΩ)
  • Low-power SAR, ΔΣ ADC driver
  • Low power, high performance:
    • Differential to differential amplifier
    • Single-ended to differential amplifier
  • Low-power, wide-bandwidth differential driver
  • Low-power, wide-bandwidth differential signal conditioning
  • High channel count and power dense systems

THS4531/31A Fully-Differential Op Amps

ImageManufacturer Part NumberDescriptionAmplifier TypeNumber of CircuitsAvailable QuantityView Details
THS4531AIDGK datasheet linkIC OPAMP DIFF 27MHZ RRO 8VSSOPTHS4531AIDGKIC OPAMP DIFF 27MHZ RRO 8VSSOPDifferential1437 - Immediate
THS4531AIDGK product page link
THS4531ID datasheet linkIC OPAMP DIFF 27MHZ RRO 8SOICTHS4531IDIC OPAMP DIFF 27MHZ RRO 8SOICDifferential1341 - Immediate
THS4531ID product page link
THS4531IDR datasheet linkIC OPAMP DIFF 27MHZ RRO 8SOICTHS4531IDRIC OPAMP DIFF 27MHZ RRO 8SOICDifferential12084 - Immediate
THS4531IDR product page link
THS4531AID datasheet linkIC OPAMP DIFF 27MHZ RRO 8SOICTHS4531AIDIC OPAMP DIFF 27MHZ RRO 8SOICDifferential10THS4531AID product page link

THS4531/31A Evaluation Modules

ImageManufacturer Part NumberDescriptionChannels per ICAmplifier TypeOutput TypeAvailable QuantityView Details
THS4531ADGKEVM datasheet linkMODULE EVAL FOR THS4531ATHS4531ADGKEVMMODULE EVAL FOR THS4531A1 - SingleDifferentialDifferential, Rail-to-Rail2 - Immediate
3 - Factory Stock
THS4531ADGKEVM product page link
THS4531DGKEVM datasheet linkEVAL MODULE FOR THS4531THS4531DGKEVMEVAL MODULE FOR THS45311 - SingleDifferentialDifferential, Rail-to-Rail1 - Immediate
3 - Factory Stock
THS4531DGKEVM product page link
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Published: 2013-07-22