MAX6018 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – Precision, Micropower, 1.8V Supply, Low-Dropout, SOT23 Voltage Reference

19-2211; Rev 2; 12/02
Precision, Micropower, 1.8V Supply,
Low-Dropout, SOT23 Voltage Reference
General Description
The MAX6018 is a precision, low-voltage, low-dropout,
micropower voltage reference in a SOT23 package. This
three-terminal reference operates with an input voltage
from (V_OUT + 200mV) to 5.5V, and is available with out-
put voltage options of 1.2V, 1.6V, 1.8V, and 2.048V
The MAX6018 voltage reference consumes less than
5µA (max) of supply current and can source and sink
up to 1mA of load current. Unlike conventional shunt-
mode (two-terminal) references that waste supply cur-
rent and require an external resistor, devices in the
MAX6018 family offer a supply current that is virtually
independent of supply voltage (with only 0.1µA/V varia-
tion with supply voltage) and do not require an external
resistor. The MAX6018 has initial accuracies of 0.2% (A
grade) and 0.4% (B grade) and temperature drift of
50ppm/°C (max). The low-dropout voltage and the
ultra-low, supply voltage-independent supply current
make this device ideal for two-cell alkaline, end-of-life,
battery-monitoring systems. The MAX6018 is available
in a tiny 3-pin SOT23 package.
Applications
Two-Cell, Battery-Operated Systems
Battery-Operated Equipment
Hand-Held Equipment
Data-Acquisition Systems
Industrial and Process-Control Systems
Typical Application Circuit
V_CC
REFERENCE
IN
OUT
OUT
*
MAX6018
GND
1µF, MAX*
*OPTIONAL
Pin Configuration
TOP VIEW
IN 1
OUT 2
MAX6018
3 GND
SOT23
Features
o Ultra-Low Supply Current: 5µA (max)
o 1.6V Output from 1.8V Input
o Ultra-Small, 3-Pin SOT23 Package
o Initial Accuracy: ±0.2% (max)
o Low Temperature Drift: 50ppm/°C (max)
o 200mV Dropout Voltage
o Load Regulation (1mA Source): 700µV/mA (max)
o Line Regulation (V_OUT + 200mV) to 5.5V: 250µV/V
(max)
o Four Output Voltage Options: 1.2V, 1.6V,
1.8V, 2.048V
Ordering Information
PART
TEMP RANGE
MAX6018AEUR12-T -40°C to +85°C
MAX6018BEUR12-T -40°C to +85°C
MAX6018AEUR16-T -40°C to +85°C
MAX6018BEUR16-T -40°C to +85°C
MAX6018AEUR18-T -40°C to +85°C
MAX6018BEUR18-T -40°C to +85°C
MAX6018AEUR21-T -40°C to +85°C
MAX6018BEUR21-T -40°C to +85°C
PIN-
PACKAGE
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
3 SOT23-3
TOP
MARK
FZJH
FZJI
FZJJ
FZJK
FZJL
FZJM
FZJN
FZJO
PART
MAX6018AEUR12
MAX6018BEUR12
MAX6018AEUR16
MAX6018BEUR16
MAX6018AEUR18
MAX6018BEUR18
MAX6018AEUR21
MAX6018BEUR21
Selector Guide
OUTPUT
VOLTAGE (V)
1.263
1.263
1.600
1.600
1.800
1.800
2.048
2.048
INITIAL
ACCURACY (%)
±0.2
±0.4
±0.2
±0.4
±0.2
±0.4
±0.2
±0.4
________________________________________________________________ Maxim Integrated Products 1
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