MAX873_07 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Low-Power, Low-Drift, +2.5V/+5V/+10V Precision Voltage References

19-0038; Rev 3; 6/07
Low-Power, Low-Drift, +2.5V/+5V/+10V
Precision Voltage References
General Description
The MAX873/MAX875/MAX876 precision 2.5V, 5V, and
10V references offer excellent accuracy and very low
power consumption. Extremely low temperature drift
combined with excellent line and load regulation permit
stable operation over a wide range of electrical and envi-
ronmental conditions. Operation for the MAX873 is guar-
anteed with a +4.5V supply, making the part ideal in
systems running from a +5V ±10% supply. Low 10Hz to
1kHz noise—typically 3.8µV_RMS, 9µV_RMS, and 18µV_RMS,
respectively, for the MAX873, MAX875, MAX876—make
the parts suitable for 12-bit data-acquisition systems.
A TRIM pin facilitates adjustment of the reference voltage
over a ±6% range, using only a 100kΩ potentiometer. A
voltage output proportional to temperature provides a
source for temperature compensation circuits, tempera-
ture warning circuits, and other applications.
Features
♦ MAX873/MAX875/MAX876
+2.5V/+5V/+10V Outputs
±1.5mV/±2.0mV/±3.0mV (max) Initial Accuracy
♦ 7ppm/°C (max) Temperature Coefficient
♦ 450µA (max) Quiescent Current
♦ Low Noise: 3.8µV_P-P (typ at 2.5V)
♦ Sources 10mA, Sinks 2mA
♦ 15ppm/mA Load Regulation (max)
♦ 4ppm/V Line Regulation (max)
♦ Wide Supply Voltage Range, +4.5V to +18V
(MAX873)
♦ TEMP Output Proportional to Temperature
Applications
12-Bit ADCs and DACs
Digital Multimeters
Portable Data-Acquisition Systems
Low-Power Test Equipment
Typical Operating Circuit
V+
0.1µF*
IN
MAX873
MAX875
MAX876
OUT
+2.5V (MAX873)
+5.0V (MAX875)
+10.0V (MAX876)
Pin Configuration appears at end of data sheet.
GND
*OPTIONAL
0V
Ordering Information/Selector Guide
PART
PIN-
PACKAGE
OUTPUT
VOLTAGE
(V)
MAX
TEMPCO
(ppm/°C)
MAX873AESA+
8 SO
2.500
7
MAX873BESA+
8 SO
2.500
20
MAX875AESA+
8 SO
5.000
7
MAX875BESA+
8 SO
5.000
20
MAX876AESA+
8 SO
10.000
7
MAX876BESA+
8 SO
10.000
20
+Denotes a lead-free package.
Note: All devices are specified over the -40°C to +85°C operating temperature range.
INITIAL
ACCURACY
%
± 0.06
± 0.10
± 0.04
± 0.06
± 0.03
± 0.05
PKG
CODE
S8-4
S8-4
S8-4
S8-4
S8-4
S8-4
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.