MAXIM MAX6161–MAX6168 Precision, Micropower, Low- Dropout, High Output-Current, SO-8 Voltage References

19-1650; Rev 3; 8/05

Precision, Micropower, Low-Dropout, High- Output-Current, SO-8 Voltage References General Description ____________________________Features The MAX6161–MAX6168 are precision, low-dropout, ±2m V (max) Initial Accuracy

micropower voltage references. These three-terminal

5ppm/°C (max) Temperature Coefficient

devices operate with an input voltage range from (VOUT + 200m V) to 12.6V and are available with output volt-

5m A Source Current at 0.9m V/m A

age options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V,

2m A Sink Current at 2.5m V/m A

4.5V, and 5V. They feature a proprietary curvature-cor- rection circuit and laser-trimmed thin-film resistors that

Stable with 1µF Capacitive Loads

result in a very low temperature coefficient of 5ppm/°C

(max) and an init ial accuracy of ±2m V (max). No External Capacitor Required

Specifications apply to the extended temperature range

100µA (typ) Quiescent Supply Current

(-40°C to +85°C).

200m V (max) Dropout at 1m A Load Current

The MAX6161–MAX6168 typically draw only 100µA of supply current and can source 5m A (4m A for Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V, MAX6161) or sink 2m A of load current. Unlike conven-

tional shunt-mode (two-terminal) references that waste supply current and require an external resistor, these

Ordering Information

devices offer a supply current that is virtually indepen- dent of the supply voltage (8µA/V variation) and do not

OUTPUT

require an external resistor. Additionally, the internally PIN-

PART* TEMP RANGE VOLTAGE

compensated devices do not require an external com- PACKAGE

pensation capacitor. Eliminating the external compen-

sation capacitor saves valuable board area in MAX6161_ESA -40°C to +85°C 8 SO 1.250

space-critical applications. A low-dropout voltage and MAX6162_ESA -40°C to +85°C 8 SO 2.048 a supply-independent, ultra-low supply current make

MAX6163_ESA -40°C to +85°C 8 SO 3.000

these devices ideal for battery-operated, high-perfor-

MAX6164_ESA -40°C to +85°C 8 SO 4.096

mance, low-voltage systems.

MAX6165_ESA -40°C to +85°C 8 SO 5.000

The MAX6161–MAX6168 are available in 8-pin SO

packages. MAX6166_ESA -40°C to +85°C 8 SO 2.500 MAX6167_ESA -40°C to +85°C 8 SO 4.500 MAX6168_ESA -40°C to +85°C 8 SO 1.800

________________________Applications

*Insert the code for the desired initial accuracy and temperature

Analog-to-Digital Converters (ADCs) coefficient (from the Selector Guide) in the blank to complete

the part number.

Portable Battery-Powered Systems Notebook Computers

___________________Pin Configuration

PDAs, GPS, DMMs Cellular Phones

TOP VIEW

Precision +3V/+5V Systems

N.C.IN

MAX6161– N.C. MAX6168 OUT

N.C.GND

Typical Operating Circuit and Selector Guide appear at end of data sheet.

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.