OPA820-HT

OPA820-HT www.ti.com SBOS587 – DECEMBER 2011 UNITY-GAIN STABLE, LOW-NOISE, VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER Check for Samples: OPA820-HT FEATURES 1 High Bandwidth (240 MHz at 25°C and 100 MHz at 210°C, G = 2) High Output Current (±110 mA at 25°C and 50 mA at 210°C) Low Input Noise (2.5 nV/√Hz at 25°C and 4.5 nV/√Hzat 210°C) Low Supply Current (5.6 mA at 25°C and 6.8 mA at 210°C) Flexible Supply Voltage: – Dual ±2.5 V to ±5 V – Single +5 V APPLICATIONS Downhole Drilling Extreme Temperature Application SUPPORTS EXTREME TEMPERATURE APPLICATIONS Controlled Baseline One Assembly/Test Site One Fabrication Site Available in Extreme (–55°C/210°C) Temperature Range(1) Extended Product Life Cycle Extended Product-Change Notification Product Traceability Texas Instruments high temperature products utilize highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures. All devices are characterized and qualified for 1000 hour continuous operating life at maximum rated temperature. (1) Custom temperature ranges available DESCRIPTION The OPA820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 6.8-mA supply current. The OPA820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±3.5 mV and an offset current of ±700 nA give...