MCP9700/9700A
MCP9701/9701A
Low-Power Linear Active Thermistor ICs
Features
• Tiny Analog Temperature Sensor
• Available Packages:
- SC70-5, SOT-23-3, TO-92-3
• Wide Temperature Measurement Range:
- -40°C to +125°C (Extended Temperature)
- -40°C to +150°C (High Temperature)
(MCP9700,
SOT-23-3 and SC70-5 only)
• Accuracy:
- ±2°C (max.), 0°C to +70°C
(MCP9700A/9701A)
- ±4°C (max.), 0°C to +70°C
(MCP9700/9701)
• Optimized for Analog-to-Digital Converters (ADCs):
- 10.0 mV/°C (typical)
(MCP9700/9700A)
- 19.5 mV/°C (typical)
(MCP9701/9701A)
• Wide Operating Voltage Range:
- V
DD
= 2.3V to 5.5V
(MCP9700/9700A)
- V
DD
= 3.1V to 5.5V
(MCP9701/9701A)
• Low Operating Current: 6 µA (typical)
• Optimized to Drive Large Capacitive Loads
General Description
MCP9700/9700A and MCP9701/9701A sensors with
Linear Active Thermistor Integrated Circuit (IC) com-
prise a family of analog temperature sensors that
convert temperature to analog voltage.
The low-cost, low-power sensors feature an accuracy
of ±2°C from 0°C to +70°C (MCP9700A/9701A) and
±4°C from 0°C to +70°C (MCP9700/9701) while
consuming 6 µA (typical) of operating current.
Unlike resistive sensors, e.g., thermistors, the Linear
Active Thermistor IC does not require an additional
signal-conditioning circuit. Therefore, the biasing circuit
development overhead for thermistor solutions can be
avoided by implementing a sensor from these low-cost
devices. The Voltage Output pin (V
OUT
) can be directly
connected to the ADC input of a microcontroller. The
MCP9700/9700A and MCP9701/9701A temperature
coefficients are scaled to provide a 1°C/bit resolution
for an 8-bit ADC with a reference voltage of 2.5V and
5V, respectively. The MCP9700/9700A output 0.1°C/bit
for a 12-bit ADC with 4.096V reference.
The MCP9700/9700A and MCP9701/9701A provide a
low-cost solution for applications that require measure-
ment of a relative change of temperature. When mea-
suring relative change in temperature from +25°C, an
accuracy of ±1°C (typical) can be realized from 0°C to
+70°C. This accuracy can also be achieved by applying
system calibration at +25°C.
In addition, this family of devices is immune to the
effects of parasitic capacitance and can drive large
capacitive loads. This provides printed circuit board
(PCB) layout design flexibility by enabling the device to
be remotely located from the microcontroller. Adding
some capacitance at the output also helps the output
transient response by reducing overshoots or
undershoots. However, capacitive load is not required
for the stability of sensor output.
3-Pin SOT-23
MCP9700/9700A
MCP9701/9701A
GND
123
3
5-Pin SC70
MCP9700/9700A
MCP9701/9701A
NC 1
GND 2
V
OUT
3
1
V
DD
2
V
OUT
4 V
DD
5 NC
Typical Applications
•
•
•
•
•
•
Hard Disk Drives and Other PC Peripherals
Entertainment Systems
Home Appliance
Office Equipment
Battery Packs and Portable Equipment
General Purpose Temperature Monitoring
Package Types
3-Pin TO-92
MCP9700/9700A
MCP9701/9701A
Bottom
View
1
V
DD
V
OUT
GND
2005-2016 Microchip Technology Inc.
DS20001942G-page 1
MCP9700/9700A and MCP9701/9701A
1.0
ELECTRICAL
CHARACTERISTICS
† Notice:
Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
Absolute Maximum Ratings †
V
DD
....................................................................... 6.0V
Storage Temperature......................... -65°C to +150°C
Ambient Temp. with Power Applied... -40°C to +150°C
Output Current .................................................±30 mA
Junction Temperature (T
J
).................................. 150°C
ESD Protection on All Pins (HBM:MM) ..... (4 kV:200V)
Latch-Up Current at Each Pin ....................... ±200 mA
DC ELECTRICAL CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated:
MCP9700/9700A:
V
DD
= 2.3V to 5.5V, GND = Ground, T
A
= -40°C to +125°C and No load
MCP9701/9701A:
V
DD
= 3.1V to 5.5V, GND = Ground, T
A
= -10°C to +125°C and No load
Parameter
Power Supply
Operating Voltage Range
Operating Current
Line Regulation
Sensor Accuracy (Notes
2, 3)
T
A
= +25°C
T
A
= 0°C to +70°C
T
A
= -40°C to +125°C
T
A
= -10°C to +125°C
T
A
= 0°C to +70°C
T
A
= -40°C to +125°C
T
A
= -10°C to +125°C
T
A
= -40°C to +150°C
Sensor Output
Output Voltage, T
A
= 0°C
Output Voltage, T
A
= 0°C
Temperature Coefficient
Output Nonlinearity
Note 1:
2:
3:
4:
5:
V
0°C
V
0°C
T
C
T
C
V
ONL
—
—
—
—
—
500
400
10.0
19.5
±0.5
—
—
—
—
—
mV
mV
MCP9700/9700A
MCP9701/9701A
T
ACY
T
ACY
T
ACY
T
ACY
T
ACY
T
ACY
T
ACY
T
ACY
—
-2.0
-2.0
-2.0
-4.0
-4.0
-4.0
-4.0
±1
±1
±1
±1
±2
±2
±2
±2
—
+2.0
+4.0
+4.0
+4.0
+6.0
+6.0
+6.0
°C
°C
°C
°C
°C
°C
°C
°C
MCP9700A/9701A
MCP9700A
MCP9701A
MCP9700/9701
MCP9700
MCP9701
HighTemperature (Note
1)
V
DD
V
DD
I
DD
I
DD
°C/V
DD
2.3
3.1
—
—
—
—
—
6
—
0.1
5.5
5.5
12
15
—
V
V
µA
µA
°C/V
T
A
= 150°C
(Note
1)
MCP9700/9700A
MCP9701/9701A
Sym.
Min.
Typ.
Max.
Unit
Conditions
mV/°C
MCP9700/9700A
mV/°C
MCP9701/9701A
°C
T
A
= 0°C to +70°C
(Note
3)
MCP9700 with SC70-5 and SOT-23-3 packages only. The MCP9700 High Temperature is not available
with TO-92 package.
The MCP9700/9700A family accuracy is tested with V
DD
= 3.3V, while the MCP9701/9701A accuracy is
tested with V
DD
= 5.0V.
The MCP9700/9700A and MCP9701/9701A family is characterized using the first-order or linear equation,
as shown in
Equation 4-2.
Also refer to
Figure 2-16.
The MCP9700/9700A and MCP9701/9701A family is characterized and production tested with a
capacitive load of 1000 pF.
SC70-5 package thermal response with 1x1 inch, dual-sided copper clad, TO-92-3 package thermal
response without PCB (leaded).
DS20001942G-page 2
2005-2016 Microchip Technology Inc.
MCP9700/9700A and MCP9701/9701A
DC ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications:
Unless otherwise indicated:
MCP9700/9700A:
V
DD
= 2.3V to 5.5V, GND = Ground, T
A
= -40°C to +125°C and No load
MCP9701/9701A:
V
DD
= 3.1V to 5.5V, GND = Ground, T
A
= -10°C to +125°C and No load
Parameter
Output Current
Output Impedance
Output Load Regulation
Turn-On Time
Typical Load Capacitance
SC-70 Thermal Response to 63%
TO-92 Thermal Response to 63%
Note 1:
2:
3:
4:
5:
Sym.
I
OUT
Z
OUT
V
OUT
/
I
OUT
t
ON
C
LOAD
t
RES
t
RES
Min.
—
—
—
—
—
—
—
Typ.
—
20
1
800
—
1.3
1.65
Max.
100
—
—
—
1000
—
—
Unit
µA
µs
pF
s
s
Note 4
30°C (Air) to +125°C
(Fluid Bath)
(Note
5)
I
OUT
= 100 µA, f = 500 Hz
T
A
= 0°C to +70°C
I
OUT
= 100 µA
Conditions
MCP9700 with SC70-5 and SOT-23-3 packages only. The MCP9700 High Temperature is not available
with TO-92 package.
The MCP9700/9700A family accuracy is tested with V
DD
= 3.3V, while the MCP9701/9701A accuracy is
tested with V
DD
= 5.0V.
The MCP9700/9700A and MCP9701/9701A family is characterized using the first-order or linear equation,
as shown in
Equation 4-2.
Also refer to
Figure 2-16.
The MCP9700/9700A and MCP9701/9701A family is characterized and production tested with a
capacitive load of 1000 pF.
SC70-5 package thermal response with 1x1 inch, dual-sided copper clad, TO-92-3 package thermal
response without PCB (leaded).
TEMPERATURE CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated:
MCP9700/9700A:
V
DD
= 2.3V to 5.5V, GND = Ground, T
A
= -40°C to +125°C and No load
MCP9701/9701A:
V
DD
= 3.1V to 5.5V, GND = Ground, T
A
= -10°C to +125°C and No load
Parameters
Temperature Ranges
Specified Temperature Range
(Note
1)
T
A
T
A
T
A
-40
-10
-40
—
—
—
+125
+125
+150
°C
°C
°C
MCP9700/9700A
MCP9701/9701A
High Temperature
(MCP9700,
SOT23-3
and SC70-5 only)
Extended Temperature
High Temperature
Sym.
Min.
Typ.
Max.
Units
Conditions
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 5LD SC70
Thermal Resistance, 3LD SOT-23
Thermal Resistance, 3LD TO-92
Note 1:
T
A
T
A
T
A
JA
JA
JA
-40
-40
-65
—
—
—
—
—
—
331
308
146
+125
+150
+150
—
—
—
°C
°C
°C
°C/W
°C/W
°C/W
Operation in this range must not cause T
J
to exceed Maximum Junction Temperature (+150°C).
2005-2016 Microchip Technology Inc.
DS20001942G-page 3
MCP9700/9700A and MCP9701/9701A
2.0
Note:
TYPICAL PERFORMANCE CURVES
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note:
Unless otherwise indicated,
MCP9700/9700A:
V
DD
= 2.3V to 5.5V;
MCP9701/9701A:
V
DD
= 3.1V to 5.5V;
GND = Ground, C
bypass
= 0.1 µF.
6.0
5.0
Accuracy (°C)
3.0
2.0
1.0
0.0
-1.0
-2.0
-50
MCP9700A V
DD
= 3.3V
MCP9701A
V
DD
= 5.0V
Spec. Limits
6.0
4.0
Accuracy (°C)
2.0
0.0
-2.0
-4.0
MCP9700
V
DD
= 3.3V
MCP9701
V
DD
= 5.0V
4.0
Spec. Limits
-25
0
25
50
75
T
A
(°C)
100
125
150
-50
-25
0
25
50
75
T
A
(°C)
100
125
150
FIGURE 2-1:
Accuracy vs. Ambient
Temperature (MCP9700A/9701A).
6.0
4.0
Accuracy (°C)
2.0
0.0
-2.0
-4.0
FIGURE 2-4:
Accuracy vs. Ambient
Temperature (MCP9700/9701).
∆
Accuracy Due to Load
(°C)
MCP9700
MCP9700A
V
DD
= 5.5V
V
DD
= 2.3V
MCP9701/
MCP9701A
V
DD
= 5.5V
V
DD
= 3.1V
0.2
I
LOAD
= 100 µA
0.1
0
MCP9701/MCP9701A
V
DD
= 5.0V
-0.1
-0.2
-50
-25
0
MCP9700/MCP9700A
V
DD
= 3.3V
-50
-25
0
25
50
75
T
A
(°C)
100
125
150
25
50 75
T
A
(°C)
100 125 150
FIGURE 2-2:
Accuracy vs. Ambient
Temperature, with V
DD
.
12.0
10.0
8.0
I
DD
(µA)
6.0
4.0
2.0
0.0
-50
-25
0
25
50
75
T
A
(°C)
100
125
150
MCP9700/MCP9700A
MCP9701
MCP9701A
FIGURE 2-5:
Changes in Accuracy vs.
Ambient Temperature (Due to Load).
4.0
Load Regulation
∆V/∆I
(Ω)
3.0
2.0
1.0
0.0
-50
-25
0
25
50
T
A
(°C)
75
100
125
MCP9700/MCP9700A
MCP9701/MCP9701A
V
DD
= 3.3V
I
OUT
= 50 µA
I
OUT
= 100 µA
I
OUT
= 200 µA
FIGURE 2-3:
Temperature.
Supply Current vs.
FIGURE 2-6:
Load Regulation vs.
Ambient Temperature.
DS20001942G-page 4
2005-2016 Microchip Technology Inc.
MCP9700/9700A and MCP9701/9701A
Note:
Unless otherwise indicated,
MCP9700/9700A:
V
DD
= 2.3V to 5.5V;
MCP9701/9701A:
V
DD
= 3.1V to 5.5V;
GND = Ground, C
bypass
= 0.1 µF.
35%
30%
Occurrences
25%
20%
15%
10%
5%
0%
500
400
520
540
420
440
460
480
560
580
600
V
0°C
(mV)
MCP9700
35%
V
DD
= 3.3V
108 samples
MCP9700A
30%
Occurrences
25%
20%
15%
10%
5%
0%
MCP9701
V
DD
= 5.0V
108 samples
MCP9701A
MCP9701
V
0°C
(mV)
FIGURE 2-7:
Output Voltage at 0°C
(MCP9700/9700A).
45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
FIGURE 2-10:
Output Voltage at 0°C
(MCP9701/9701A).
45%
40%
35%
30%
25%
20%
15%
10%
5%
0%
Occurrences
10.0
10.1
10.2
10.2
10.3
10.4
10.5
9.7
9.8
9.8
9.9
Occurrences
MCP9700
MCP9700A
V
DD
= 3.3V
108 samples
MCP9701
MCP9701A
V
DD
= 5.0V
108 samples
19.5
19.6
19.3
19.4
19.2
19.3
19.7
19.7
19.8
19.9
T
C
(mV/°C)
T
C
(mV/°C)
FIGURE 2-8:
Occurrences vs.
Temperature Coefficient (MCP9700/9700A).
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-50
-25
0
25
50
75
T
A
(°C)
100 125 150
MCP9700/MCP9700A
V
DD
= 2.3V to 4.0V
FIGURE 2-11:
Occurrences vs.
Temperature Coefficient (MCP9701/9701A).
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-50
-25
0
25
50
T
A
(°C)
75
100
125
MCP9701/MCP9701A
V
DD
= 3.1V to 4.0V
Normalized Line Regulation
( °C/ V
DD
)
FIGURE 2-9:
Line Regulation (
°C/
V
DD
)
vs. Ambient Temperature.
FIGURE 2-12:
Line Regulation (
°C/
V
DD
)
vs. Ambient Temperature.
2005-2016 Microchip Technology Inc.
Normalized Line Regulation
( °C/ V
DD
)
MCP9700/MCP9700A
V
DD
= 2.3V to 5.5V
MCP9701/MCP9701A
V
DD
= 3.1V to 5.5V
DS20001942G-page 5
20.0
500
300
320
340
360
380
400
420
440
460
480
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