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The MAX6161MAX6168 are precision, low-dropout,micropower voltage references. These three-terminal devices operate with an input voltage range from(VOUT+ 200mV) to 12.6V and are available with output voltage options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V,4.5V, and 5V. They feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low temperature coefficient of 5ppm/°C (max) and an initial accuracy of ±2mV (max).Specifications apply to the extended temperature range(-40°C to +85°C).
The MAX6161MAX6168 typically draw only 90A of supply current and can source 5mA (4mA for MAX6161) or sink 2mA of load current. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, these devices offer a supply current that is virtually independent of the supply voltage (8A/V variation) and do not require an external resistor. Additionally, the internally compensated devices do not require an external compensation capacitor. Eliminating the external compensation saves valuable board area in space-critical applications. A low-dropout voltage and a supply-independent, ultra-low supply current make these devices ideal for battery-operated, high-performance,low-voltage systems.
The MAX6161MAX6168 are available in 8-pin SO packages.
MAX6161 Maximum Ratings
Voltages Referenced to GND IN .........................................................................-0.3 to +13.5V OUT.........................................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration to GND or IN (VIN 6V) ....Continuous Output Short-Circuit Duration to GND or IN (VIN > 6V)................60s Continuous Power Dissipation (TA = +70°C) 8-Pin SO (derate 5.88mW/°C above +70°C)......................471mW Operating Temperature Range ................................-40°C to +85°C Storage Temperature Range..................-65°C to +150°C Lead Temperature (soldering, 10s)......................+300°C
MAX6161 Features
±2mV (max) Initial Accuracy 5ppm/°C (max) Temperature Coefficient 5mA Source Current at 0.9mV/mA 2mA Sink Current at 2.5mV/mA Stable with 1F Capacitive Loads No External Capacitor Required 90A (typ) Quiescent Supply Current 200mV (max) Dropout at 1mA Load Current 60V/V Line Regulation Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,3V, 4.096V, 4.5V, 5V
MAX6161 Typical Application
Analog-to-Digital Converters (ADCs) Portable Battery-Powered Systems Notebook Computers PDAs, GPS, DMMs Cellular Phones Precision +3V/+5V Systems