MAXIM MAX6610, MAX6611 Technical data
General Description
The MAX6610/MAX6611 are precise, low-power analog
temperature sensors combined with a precision voltage
reference. They are ideal for applications involving analog-to-digital converters (ADCs), where the MAX6610/
MAX6611 provide the reference voltage for the ADC
and develop a temperature output voltage that is
scaled to provide convenient ADC output codes. An 8bit ADC’s LSB is equal to 1°C, while a 10-bit ADC’s LSB
corresponds to 0.25°C.
The MAX6610/MAX6611 are available in two versions.
The MAX6611 operates from a 4.5V to 5.5V power supply and has a 4.096V reference output. The MAX6610
operates from 3.0V to 5.5V and has a 2.560V reference
output. Power-supply current is less than 150µA (typ).
Both the MAX6610/MAX6611 are available in a 6-pin
SOT23 package and operate from -40°C to +125°C.
Applications
System Temperature Monitoring
Temperature Compensation
HVAC
Home Appliances
Features
♦ ±1°C Accuracy
♦ Low TC Reference (±10ppm, typ)
♦ Temperature Output Scaled for ADCs
♦ Integrated Reference Voltage Scaled for
Convenient ADC Bit Weights
♦ No Calibration Required
♦ Low Supply Current
♦ Tiny 6-Pin SOT23 Package
♦ Low-Current Shutdown Mode
MAX6610/MAX6611
Precision, Low-Power, 6-Pin SOT23
Temperature Sensors and Voltage References
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
µC
REF IN
ADC IN
REF
TEMP
GND
GND
V
CC
V
CC
V
CC
GND
0.1µF
1nF
MAX6610
MAX6611
1nF
SHDN
Typical Application Circuit
19-2457; Rev 2; 11/03
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.
Pin Configuration
GND
TEMP
16GND
5 REF
V
CC
MAX6610
MAX6611
SOT23
TOP VIEW
2
34SHDN
PART
MAX6610AUT-T -40°C to +125°C 6 SOT23-6 2.560 ABDO
MAX6611AUT-T -40°C to +125°C 6 SOT23-6 4.096 ABOP
TEMP
RANGE
PINPACKAGE
V
REF
(V)
TOP
MARK
MAX6610/MAX6611
Precision, Low-Power, 6-Pin SOT23
Temperature Sensors and Voltage References
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= 3.0 to 5.5V (MAX6610), VCC= 4.5V to 5.5V (MAX6611), TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 5.0V (MAX6611) and VCC= 3.3V (MAX6610), TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltages Referenced to GND
VCC........................................................................-0.3V to +6.0V
All Other Pins............................................. -0.3V to (VCC+ 0.3V)
Input Current ...................................................................... 20mA
Output Current ....................................................................20mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 8.7mW/°C above +70°C) ........695.7mW
Operating Temperature Range (T
MIN
, T
MAX
)....-40°C to +125°C
ESD Protection (all pins, Human Body Model) ..................2000V
Storage Temperature Range ............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) ................................+300°C
Supply Current I
Temperature Sensor Error
Temperature Sensor Output
Voltage
Temperature Sensor Nonlinearity TA = -10°C to +80°C1°C
Temperature Sensor Output Slope
Temperature Sensor Supply
Sensitivity
Temperature Sensor Load
Regulation
Temperature Sensor Capacitive
Load
Temperature Sensor Long-Term
Stability
Reference Output Voltage V
Voltage Reference Temperature
Coefficient
Voltage Reference Line
Regulation
Voltage Reference Load
Regulation
Voltage Reference Long-Term
Stability
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Outputs unloaded 150 250
CC
SHDN = 0 0.2 1
TA = +25°C -1.2 +1.2
TA = -10°C to +55°C (Note 2) -2.4 +2.4
TA = -20°C to +85°C (Note 2) -3.7 +3.7
= -40°C to +125°C (Note 2) -5.0 +5.0
T
A
V
∆V
∆I
∆V
TEMP
time
MAX6611, TA = 0°C 1.200
MAX6610, TA = 0°C 0.750
MAX6611 16
MAX6610 10
3.0V ≤ VCC ≤ 5.5V for MAX6610 and 4.5V ≤
V
≤ 5.5V for MAX6611
CC
Sourcing: 0 ≤ I
Sinking: -100µA ≤ I
No sustained oscillations (Note 3) 0 0.2 µF
= +50°C for 1000hr ±0.1 °C
T
A
MAX6611, TA = +25°C 4.076 4.096 4.116
REF
MAX6610, TA = +25°C 2.547 2.560 2.573
T
= -40°C to +85°C -50 ±10 +50 ppm/°C
A
Sourcing: 0 ≤ I
/
OUT
OUT
Sinking: -200µA ≤ I
/
OUT
1000h at T
= +25°C 50 ppm
A
≤ 500µA -1 -2.5 +1
OUT
≤ 0 -2.5 +5
OUT
≤ 1mA 1 2
OUT
≤ 0 4 20
OUT
-1 +1 mV/V
0.5 °C/V
µA
°C
V
mV/°C
°C/mA
V
Ω
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