概述
The MAX872/MAX874 precision 2.5V and 4.096V micro-power voltage references consume a maximum of only 10µA and operate from supply voltages up to 20V. The combination of ultra-low quiescent current and low 200mV dropout makes them ideal for battery-powered equipment. They source and sink up to 500µA with only 200mV input voltage headroom, which makes the 2.5V MAX872 ideal for use with a 3V supply and the 4.096V MAX874 ideal for use with a 5V supply.
Initial accuracy of 0.2% at +25°C (±5mV for the MAX872, ±8mV for the MAX874) and low 40ppm/°C max drift make these references suitable for a wide range of precision applications.
| 关键特性 |
|
应用 |
- Output Voltage
- 2.500V ±0.2% (MAX872)
- 4.096V ±0.2% (MAX874)
- Wide Operating Voltage Range
- 2.7V to 20V (MAX872)
- 4.3V to 20V (MAX874)
- 10µA Max Supply Current
- 40ppm/°C Max Drift Over Extended Temp. Range
- Line Regulation Over Temp.
- 20µV/V (MAX872)
- 75µV/V (MAX874)
- Load Regulation Over Temp.
- 0.6mV/mA Max (MAX872)
- 1.0mV/mA Max (MAX874)
- ±500µA Sink/Source Current
|
|
|
|
| 注释 |
|
|
Lowest power, lowest dropout precision reference. VCC = VOUT + 200mV | |
| 图表 |
Typical Operating Circuit
Pin Configuration
 |
