MAX6612 Datasheet, PDF (1/5 Pages) Maxim Integrated Products – High-Slope, Low-Power, Analog Temperature Sensor in an SC70 Package

19-2546; Rev 0; 7/02
High-Slope, Low-Power, Analog Temperature
Sensor in an SC70 Package
General Description
The MAX6612 is a low-power precision analog output
temperature sensor in a tiny 5-pin SC70 package. The
sensitivity of the output voltage to temperature is a high
19.53mV/°C. This sensitivity provides superior noise
immunity. The voltage/temperature slope is chosen to
provide convenient bit weights when the MAX6612 dri-
ves the input of an ADC with a 2.5V or 5V reference.
The MAX6612 provides an analog voltage output propor-
tional to temperature. Accuracy is ±1.2°C (max) at +25°C,
±3.0 (max) from T_A = 0°C to +70°C, and ±5.5°C (max)
from T_A = -10°C to +125°C. Useful measurements can be
obtained at temperatures as high as +150°C. Self-heating
effects are negligible due to the low current consumption
of the part.
Unlike many analog temperature sensors, the MAX6612
is stable with large capacitive loads. Any capacitive
load greater than or equal to 1000pF yields stable oper-
ation, providing broad flexibility in board-level design.
The operating temperature range varies with the supply
voltage, with a higher supply voltage enabling a wider
temperature range. The MAX6612 can be used over a
range of -10°C to +125°C with a supply voltage of 3.3V
or greater. For applications with a supply voltage of
2.4V, the MAX6612 can be used over a temperature
range of -10°C to +70°C.
Applications
Base Stations
Industrial Equipment
Home Appliances
Battery Packs
Medical Instruments
Portable Equipment
GPS Equipment
V_SUPPLY
Features
o Optimized for Use with ADCs
o High Temperature-to-Voltage Slope
o Able to Drive High-Capacitive Loads
o Operates Up to +150°C
o Low Current Consumption (35µA max)
o No Calibration Required
o Space-Saving SC70 Package
Ordering Information
PART
MAX6612MXK-T
TEMP RANGE
-55°C to +150°C
PIN-
PACKAGE
5 SC70-5
TOP
MARK
ADG
Pin Configuration
TOP VIEW
A1
5B
MAX6612
GND 2
OUT 3
4 V_CC
SC70
Typical Application Circuit
V_CC
C_S
R_PU1
R_PU2
OUT
AIN_
V_DD
SDA
C_LOAD
MAX6612
GND
MAX1137
SCL
C_REF
GND
________________________________________________________________ Maxim Integrated Products 1
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