OPA820-HT_16 Datasheet, PDF (1/32 Pages) Texas Instruments – UNITY-GAIN STABLE, LOW-NOISE, VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER

OPA820-HT
www.ti.com
SBOS587 – DECEMBER 2011
UNITY-GAIN STABLE, LOW-NOISE, VOLTAGE-FEEDBACK OPERATIONAL AMPLIFIER
Check for Samples: OPA820-HT
FEATURES
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• 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 excellent absolute DC precision for pulse amplifier applications.
Minimal input and output voltage swing headroom allow the OPA820 to operate on a single 5-V supply with >
2V_PP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital
converter (ADC) input ranges with lower power and noise than typical RR output op amps.
The OPA820 is characterized for operation from –55°C to 210°C.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated