19-1650; Rev 2; 2/02
P re c is io n , Mic ro p o w e r, Lo w -Dro p o u t , Hig h -
Ou t p u t -Cu rre n t , S O-8 Vo lt a g e Re fe re n c e s
Ge n e ra l De s c rip t io n
The MAX6161–MAX6168 are precision, low-dropout,
micropower voltage references. These three-terminal
____________________________Fe a t u re s
ꢀ ±2mV (max) Initial Accuracy
ꢀ 5ppm/°C (max) Temperature Coefficient
ꢀ 5mA Source Current at 0.9mV/mA
ꢀ 2mA Sink Current at 2.5mV/mA
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
(ma x) a nd a n initia l a c c ura c y of ± 2mV (ma x).
Specifications apply to the extended temperature range
(-40°C to +85°C).
ꢀ Stable with 1µF Capacitive Loads
ꢀ No External Capacitor Required
ꢀ 90µA (typ) Quiescent Supply Current
ꢀ 200mV (max) Dropout at 1mA Load Current
ꢀ 60µV/V Line Regulation
The MAX6161–MAX6168 typically draw only 90µA of
s up p ly c urre nt a nd c a n s ourc e 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-
s a tion c a p a c itor s a ve s va lua b le b oa rd a re a 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.
ꢀ Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V,
3V, 4.096V, 4.5V, 5V
Ord e rin g In fo rm a t io n
OUTPUT
VOLTAGE
(V)
TEMP
RANGE
PIN-
PACKAGE
PART*
MAX6161_ESA -40°C to +85°C
MAX6162_ESA -40°C to +85°C
MAX6163_ESA -40°C to +85°C
MAX6164_ESA -40°C to +85°C
MAX6165_ESA -40°C to +85°C
MAX6166_ESA -40°C to +85°C
MAX6167_ESA -40°C to +85°C
MAX6168_ESA -40°C to +85°C
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
8 SO
1.250
2.048
3.000
4.096
5.000
2.500
4.500
1.800
The MAX6161–MAX6168 a re a va ila b le in 8-p in SO
packages.
________________________Ap p lic a t io n s
Analog-to-Digital Converters (ADCs)
Portable Battery-Powered Systems
Notebook Computers
*Insert the code for the desired initial accuracy and temperature
coefficient (from the Selector Guide) in the blank to complete
the part number.
___________________P in Co n fig u ra t io n
PDAs, GPS, DMMs
Cellular Phones
TOP VIEW
Precision +3V/+5V Systems
N.C.
IN
1
2
3
4
8
7
6
5
N.C.
N.C.
OUT
N.C.
MAX6161–
MAX6168
N.C.
GND
SO
Typical Operating Circuit and Selector Guide appear at end
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.