MCP6541/1R/1U/2/3/4
Push-Pull Output Sub-Microamp Comparators
Features:
•
•
•
•
•
•
•
•
•
•
•
Low Quiescent Current: 600 nA/Comparator (typ.)
Rail-to-Rail Input: V
SS
- 0.3V to V
DD
+ 0.3V
CMOS/TTL-Compatible Output
Propagation Delay: 4 µs
(typical, 100 mV Overdrive)
Wide Supply Voltage Range: 1.6V to 5.5V
Available in Single, Dual and Quad
Single Available in SOT-23-5, SC-70-5 * Packages
Chip Select (CS) with MCP6543
Low Switching Current
Internal Hysteresis: 3.3 mV (typ.)
Temperature Ranges:
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
Description:
The Microchip Technology Inc. MCP6541/1R/1U/2/3/4
family of comparators is offered in single (MCP6541,
MCP6541R, MCP6541U), single with Chip Select (CS)
(MCP6543), dual (MCP6542) and quad (MCP6544)
configurations. The outputs are push-pull (CMOS/TTL-
compatible) and are capable of driving heavy DC or
capacitive loads.
These comparators are optimized for low-power,
single-supply operation with greater than rail-to-rail
input operation. The push-pull output of the
MCP6541/1R/1U/2/3/4 family supports rail-to-rail out-
put swing and interfaces with TTL/CMOS logic. The
internal input hysteresis eliminates output switching
due to internal input noise voltage, reducing current
draw. The output limits supply current surges and
dynamic power consumption while switching. This
product family operates with a single-supply voltage as
low as 1.6V and draws less than 1 µA/comparator of
quiescent current.
The related MCP6546/7/8/9 family of comparators from
Microchip has an open-drain output. Used with a pull-
up resistor, these devices can be used as level-shifters
for any desired voltage up to 10V and in wired-OR
logic.
* SC-70-5 E-Temp parts not available at this release of
the data sheet.
MCP6541U SOT-23-5 is E-Temp only.
Typical Applications:
•
•
•
•
•
•
•
•
Laptop Computers
Mobile Phones
Metering Systems
Hand-held Electronics
RC Timers
Alarm and Monitoring Circuits
Windowed Comparators
Multivibrators
Related Devices:
• Open-Drain Output: MCP6546/7/8/9
Package Types
MCP6541
PDIP, SOIC, MSOP
NC 1
V
IN
– 2
V
INA
+ 3
V
SS
4
-
+
8 NC
7 V
DD
6 OUT
5 NC
MCP6541R
SOT-23-5
OUT 1
V
DD
2
V
IN
+ 3
5 V
SS
-
+
4 V
IN
–
MCP6542
PDIP, SOIC, MSOP
OUTA 1
V
INA
– 2
V
INA
+ 3
V
SS
4
- +
+ -
8 V
DD
7 OUTB
6 V
INB
–
5 V
INB
+
MCP6544
PDIP, SOIC, TSSOP
OUTA 1
V
INA
– 2 - + + -
V
INA
+ 3
V
DD
4
14 OUTD
13 V
IND
–
12 V
IND
+
11 V
SS
MCP6541
SC-70-5, SOT-23-5
OUT 1
V
IN
+ 3
-
V
SS
2
+
5 V
DD
4 V
IN
–
MCP6541U
SC-70-5, SOT-23-5
+
-
V
IN
+ 1
V
SS
2
V
IN
– 3
5 V
DD
4 OUT
MCP6543
PDIP, SOIC, MSOP
NC 1
V
IN
– 2
V
IN
+ 3
V
SS
4
-
+
8 CS
7 V
DD
6 OUT
5 NC
10 V
INC
+
V
INB
+ 5
- + +- 9 V -
V
INB
– 6
INC
OUTB 7
8 OUTC
©
2002-2011 Microchip Technology Inc.
DS21696H-page 1
MCP6541/1R/1U/2/3/4
NOTES:
DS21696H-page 2
©
2002-2011 Microchip Technology Inc.
MCP6541/1R/1U/2/3/4
1.0
ELECTRICAL
CHARACTERISTICS
† Notice:
Stresses above those listed under “Absolute
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
- V
SS
.........................................................................7.0V
Current at Analog Input Pin (V
IN
+, V
IN
-.........................±2 mA
Analog Input (V
IN
) †† ...................... V
SS
- 1.0V to V
DD
+ 1.0V
All other Inputs and Outputs........... V
SS
- 0.3V to V
DD
+ 0.3V
Difference Input Voltage ....................................... |V
DD
- V
SS
|
Output Short-Circuit Current ................................ Continuous
Current at Input Pins ....................................................±2 mA
Current at Output and Supply Pins ............................±30 mA
Storage Temperature ....................................-65°C to +150°C
Maximum Junction Temperature (T
J
) .......................... +150°C
ESD Protection on all Pins (HBM;MM) ..................4 kV; 400V
†† See
Section 4.1.2 “Input Voltage and Current
Limits”
DC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C,V
IN
+ = V
DD
/2,
V
IN–
= V
SS
, and R
L
= 100 kΩ to V
DD
/2 (Refer to
Figure 1-3).
Parameters
Power Supply
Supply Voltage
Quiescent Current per comparator
Input
Input Voltage Range
Common Mode Rejection Ratio
Common Mode Rejection Ratio
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Input Offset Voltage
Drift with Temperature
Input Hysteresis Voltage
Linear Temp. Co.
(Note
2)
Quadratic Temp. Co.
(Note
2)
Input Bias Current
At Temperature (I-Temp parts)
At Temperature (E-Temp parts)
Input Offset Current
Common Mode Input Impedance
Differential Input Impedance
Note 1:
2:
3:
4:
V
CMR
CMRR
CMRR
CMRR
PSRR
V
OS
ΔV
OS
/ΔT
A
V
HYST
TC
1
TC
2
I
B
I
B
I
B
I
OS
Z
CM
Z
DIFF
V
SS
−0.3
55
50
55
63
-7.0
—
1.5
—
—
—
—
—
—
—
—
—
70
65
70
80
±1.5
±3
3.3
6.7
-0.035
1
25
1200
±1
10
13
||4
10 ||2
13
Sym
V
DD
I
Q
Min
1.6
0.3
Typ
—
0.6
Max
5.5
1.0
V
DD
+0.3
—
—
—
—
+7.0
—
6.5
—
—
—
100
5000
—
—
—
Units
V
µA
V
dB
dB
dB
dB
mV
µV/°C
mV
µV/°C
pA
pA
pA
pA
Ω||pF
Ω||pF
I
OUT
= 0
Conditions
V
DD
= 5V, V
CM
= -0.3V to 5.3V
V
DD
= 5V, V
CM
= 2.5V to 5.3V
V
DD
= 5V, V
CM
= -0.3V to 2.5V
V
CM
= V
SS
V
CM
= V
SS
(Note
1)
T
A
= -40°C to +125°C, V
CM
= V
SS
V
CM
= V
SS
(Note
1)
T
A
= -40°C to +125°C, V
CM
= V
SS
V
CM
= V
SS
T
A
= +85°C, V
CM
= V
SS
(Note
3)
T
A
= +125°C, V
CM
= V
SS
(Note
3)
V
CM
= V
SS
µV/°C
2
T
A
= -40°C to +125°C, V
CM
= V
SS
The input offset voltage is the center (average) of the input-referred trip points. The input hysteresis is the difference
between the input-referred trip points.
V
HYST
at different temperatures is estimated using V
HYST
(T
A
) = V
HYST
+ (T
A
- 25°C) TC
1
+ (T
A
- 25°C)
2
TC
2
.
Input bias current at temperature is not tested for SC-70-5 package.
Limit the output current to Absolute Maximum Rating of 30 mA.
©
2002-2011 Microchip Technology Inc.
DS21696H-page 3
MCP6541/1R/1U/2/3/4
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C,V
IN
+ = V
DD
/2,
V
IN–
= V
SS
, and R
L
= 100 kΩ to V
DD
/2 (Refer to
Figure 1-3).
Parameters
Push-Pull Output
High-Level Output Voltage
Low-Level Output Voltage
Short-Circuit Current
Note 1:
2:
3:
4:
V
OH
V
OL
I
SC
I
SC
V
DD
−0.2
—
—
—
—
—
-2.5, +1.5
±30
—
V
SS
+0.2
—
—
V
V
mA
mA
Sym
Min
Typ
Max
Units
Conditions
I
OUT
= -2 mA, V
DD
= 5V
I
OUT
= 2 mA, V
DD
= 5V
V
DD
= 1.6V (Note
4)
V
DD
= 5.5V (Note
4)
The input offset voltage is the center (average) of the input-referred trip points. The input hysteresis is the difference
between the input-referred trip points.
V
HYST
at different temperatures is estimated using V
HYST
(T
A
) = V
HYST
+ (T
A
- 25°C) TC
1
+ (T
A
- 25°C)
2
TC
2
.
Input bias current at temperature is not tested for SC-70-5 package.
Limit the output current to Absolute Maximum Rating of 30 mA.
AC CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C,
V
IN
+ = V
DD
/2, Step = 200 mV, Overdrive = 100 mV, and C
L
= 36 pF (Refer to
Figure 1-2
and
Figure 1-3).
Parameters
Rise Time
Fall Time
Propagation Delay (High-to-Low)
Propagation Delay (Low-to-High)
Propagation Delay Skew
Maximum Toggle Frequency
Input Noise Voltage
Note 1:
Sym
t
R
t
F
t
PHL
t
PLH
t
PDS
f
MAX
f
MAX
E
ni
Min
—
—
—
—
—
—
—
—
Typ
0.85
0.85
4
4
±0.2
160
120
200
Max
—
—
8
8
—
—
—
—
Units
µs
µs
µs
µs
µs
kHz
kHz
(Note
1)
V
DD
= 1.6V
V
DD
= 5.5V
Conditions
µV
P-P
10 Hz to 100 kHz
Propagation Delay Skew is defined as: t
PDS
= t
PLH
- t
PHL
.
DS21696H-page 4
©
2002-2011 Microchip Technology Inc.
MCP6541/1R/1U/2/3/4
MCP6543 CHIP SELECT (CS) CHARACTERISTICS
Electrical Specifications:
Unless otherwise indicated, V
DD
= +1.6V to +5.5V, V
SS
= GND, T
A
= +25°C, V
IN
+ =
V
DD
/2, V
IN
– = V
SS
, and C
L
= 36 pF (Refer to Figures
1-1
and
1-3).
Parameters
CS Low Specifications
CS Logic Threshold, Low
CS Input Current, Low
CS High Specifications
CS Logic Threshold, High
CS Input Current, High
CS Input High, V
DD
Current
CS Input High, GND Current
Comparator Output Leakage
CS Dynamic Specifications
CS Low to Comparator Output
Low Turn-on Time
CS High to Comparator Output
High Z Turn-off Time
CS Hysteresis
t
ON
t
OFF
V
CS_HYS
T
Sym
Min
Typ
Max
Units
Conditions
V
IL
I
CSL
V
SS
—
—
5.0
0.2 V
DD
—
V
pA
CS = V
SS
V
IH
I
CSH
I
DD
I
SS
I
O(LEAK)
0.8 V
D
D
—
1
18
–20
1
V
DD
—
—
—
—
V
pA
pA
pA
pA
CS = V
DD
CS = V
DD
CS = V
DD
V
OUT
= V
DD
, CS = V
DD
—
—
—
—
—
—
—
2
10
0.6
50
—
—
ms
µs
V
CS = 0.2 V
DD
to V
OUT
= V
DD
/2,
V
IN
– = V
DD
CS = 0.8 V
DD
to V
OUT
= V
DD
/2,
V
IN
– = V
DD
V
DD
= 5V
CS
t
ON
V
OUT
Hi-Z
V
IL
V
IH
t
OFF
Hi-Z
-0.6 µA (typ.)
-20 pA (typ.)
1 pA (typ.)
V
IN
–
V
IN
+ = V
DD
/2
t
PLH
V
OUT
100 mV
V
OH
t
PHL
100 mV
I
SS
-20 pA (typ.)
I
CS
1 pA (typ.)
V
OL
V
OL
FIGURE 1-1:
Timing Diagram for the CS
Pin on the MCP6543.
FIGURE 1-2:
Diagram.
Propagation Delay Timing
©
2002-2011 Microchip Technology Inc.
DS21696H-page 5
