19-0005; Rev 2; 6/97
10µA, Low-Dropout,
Precision Voltage References
General Description
The MAX872/MAX874 precision 2.5V and 4.096V micro-
power voltage references consume a maximum of only
10µA and operate from supply voltages up to 20V. The
combination of ultra-low quiescent current and low
200mV dropout makes them ideal for battery-powered
equipment. They source and sink up to 500µA with only
200mV input voltage headroom, which makes the 2.5V
MAX872 ideal for use with a 3V supply and the 4.096V
MAX874 ideal for use with a 5V supply.
Initial accuracy of 0.2% at +25°C (±5mV for the MAX872,
±8mV for the MAX874) and low 40ppm/°C max drift make
these references suitable for a wide range of precision
applications.
o
Output Voltage
2.500V ±0.2% (MAX872)
4.096V ±0.2% (MAX874)
o
Wide Operating Voltage Range
2.7V to 20V (MAX872)
4.3V to 20V (MAX874)
o
10µA Max Supply Current
o
40ppm/°C Max Drift Over Extended Temp. Range
o
Line Regulation Over Temp.
20µV/V (MAX872)
75µV/V (MAX874)
o
Load Regulation Over Temp.
0.6mV/mA Max (MAX872)
1.0mV/mA Max (MAX874)
Features
MAX872/MAX874
Applications
Hand-Held Instruments
Battery-Operated Equipment
Power Supplies
o
±500µA Sink/Source Current
Ordering Information
PART
MAX872CPA
MAX872CSA
MAX872C/D
MAX872EPA
MAX872ESA
MAX874CPA
MAX874CSA
MAX874C/D
MAX874EPA
MAX874ESA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
Typical Operating Circuit
3.0V (MAX872)
5.0V (MAX874)
*
Dice are specified at +25°C only.
V
IN
V
OUT
Pin Configuration
TOP VIEW
MAX872
MAX874
TRIM
I.C.
1
V
IN
2
8
7
COMP
I.C.
V
OUT
TRIM
GND
TEMP
3
MAX872
MAX874
6
5
GND
4
REFERENCE WITH TRIMMED OUTPUT
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
