EL8170

Features:

• 78A maximum supply current
• Maximum offset voltage
- 250V (EL8170)
- 1000V (EL8173)
• 500pA input bias current
• 2V/°C offset voltage drift
• 396kHz -3dB bandwidth (G = 10)
• 192kHz -3dB bandwidth (G = 100)
• 0.5V/s slew rate
• Single supply operation
- Input voltage range is rail-to-rail
- Output swings rail-to-rail
• Output sources and sinks ±29mA load current
• 0.2% gain error
• Pb-free plus anneal available (RoHS compliant)




Application

• Battery- or solar-powered systems
• Strain gauges
• Current monitors
• Thermocouple amplifiers




Pinout






Specifications

Supply Voltage, V_S . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Differential Input Current . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . 0.5V
V_EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.5V, V_S+ + 0.5V
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV
Output Short-Circuit Duration . . . . . . . . . . . . . . . .Indefinite
Ambient Operating Temperature . . . . . . . .40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . 65°C to +150°C




Description

The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for single supply operation over the +2.4V to +5.5V range. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier. The EL8170 is compensated for a gain of 100 or more, and the EL8173 is compensated for a gain of 10 or more. The EL8170 and EL8173 have bipolar input devices for best offset and 1/f noise performance. The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8170 and EL8173 input range includes ground to slightly above positive rail. The output stage swings to ground and positive supply (no pull-up or pull-down resistors are needed).

The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for operation at 2.9V to 5V single supplies. Inputs and outputs can operate rail-to-rail. As withall instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier.

The EL8170 is compensated for a gain of 100 or more, and the EL8173 is compensated for a gain of 10 or more. The EL8170 and EL8173 have bipolar input devices for best offset and 1/f noise performance.

The amplifiers can be operated from one lithium cell or two Ni-Cd batteries. The EL8170 and EL8173 input range includes ground to slightly above positive rail. The output stage swings to ground and positive supply - no pull-up or pull-down resistors are needed.