MAX6166

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


Application

Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPS, DMMs
Cellular Phones
Precision +3V/+5V Systems


Pinout




Specifications

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


Description

The MAX6166 is 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 MAX6166 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, the MAX6166 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 MAX6166 is available in 8-pin SO packages.