High Temp Unity-Gain Stable, Low Noise, Voltage-Feedback Operational Amplifier . - OPA820-HT

OPA820-HT (ACTIVE)

High Temp Unity-Gain Stable, Low Noise, Voltage-Feedback Operational Amplifier .

 

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 > 2VPP 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.

Features

  • 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

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Parametrics Compare all products in Operational Amplifiers

 
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Rail-to-Rail
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Rating
Operating Temperature Range (C)
Output Current (Typ) (mA)
Offset Drift (Typ) (uV/C)
Vn at 1kHz (Typ) (nV/rtHz)
Architecture
Additional Features
IIB (Max) (pA)
CMRR (Typ) (dB)
OPA820-HT
1   
5   
12   
800   
240   
No   
3.5   
5.6   
Catalog   
-55 to 210   
110   
7   
2.5   
Voltage FB
Bipolar   
N/A   
39000000   
73   

Other qualified versions of OPA820-HT

Version Part Number Definition
Catalog OPA820 TI's standard catalog product

WEBENCH® Designer OPA820-HT

Amplifier Topology
 Non-inverting
 Inverting
Desired Power Supply Voltage
Positive Supply (Vcc):  V
Negative Supply (Vee):  V
Allowed Power Supply(Vcc-Vee) = 5.0 to 12.0 V
Desired Input and Output Requirements
  Min Max
Vin  V  V
Vout  V  V
Minimum Temperature = -55.0 °C
Maximum Temperature = 210.0 °C