MAX6161 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Precision, Micropower, Low-Dropout, High- Output-Current, SO-8 Voltage References

19-1650; Rev 2; 2/02
Precision, Micropower, Low-Dropout, High-
Output-Current, SO-8 Voltage References
General Description
The MAX6161–MAX6168 are precision, low-dropout,
micropower voltage references. These three-terminal
devices operate with an input voltage range from (V_OUT
+ 200mV) to 12.6V and are available with output volt-
age options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V,
4.5V, and 5V. They feature a proprietary curvature-cor-
rection 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 MAX6161–MAX6168 typically draw only 90µA of
supply current and can source 5mA (4mA for
MAX6161) or sink 2mA of load current. Unlike conven-
tional shunt-mode (two-terminal) references that waste
supply current and require an external resistor, these
devices offer a supply current that is virtually indepen-
dent of the supply voltage (8µA/V variation) and do not
require an external resistor. Additionally, the internally
compensated devices do not require an external com-
pensation capacitor. Eliminating the external compen-
sation capacitor 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-perfor-
mance, low-voltage systems.
The MAX6161–MAX6168 are available in 8-pin SO
packages.
________________________Applications
Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
PDAs, GPS, DMMs
Cellular Phones
Precision +3V/+5V Systems
____________________________Features
o ±2mV (max) Initial Accuracy
o 5ppm/°C (max) Temperature Coefficient
o 5mA Source Current at 0.9mV/mA
o 2mA Sink Current at 2.5mV/mA
o Stable with 1µF Capacitive Loads
o No External Capacitor Required
o 90µA (typ) Quiescent Supply Current
o 200mV (max) Dropout at 1mA Load Current
o 60µV/V Line Regulation
o Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,
3V, 4.096V, 4.5V, 5V
Ordering Information
PART*
TEMP
RANGE
PIN-
PACKAGE
OUTPUT
VOLTAGE
(V)
MAX6161_ESA -40°C to +85°C
MAX6162_ESA -40°C to +85°C
8 SO
8 SO
1.250
2.048
MAX6163_ESA -40°C to +85°C 8 SO
3.000
MAX6164_ESA -40°C to +85°C 8 SO
4.096
MAX6165_ESA -40°C to +85°C 8 SO
5.000
MAX6166_ESA -40°C to +85°C 8 SO
2.500
MAX6167_ESA -40°C to +85°C
MAX6168_ESA -40°C to +85°C
8 SO
8 SO
4.500
1.800
*Insert the code for the desired initial accuracy and temperature
coefficient (from the Selector Guide) in the blank to complete
the part number.
___________________Pin Configuration
TOP VIEW
N.C. 1
IN 2
N.C. 3
GND 4
MAX6161–
MAX6168
8 N.C.
7 N.C.
6 OUT
5 N.C.
Typical Operating Circuit and Selector Guide appear at end
SO
of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.