+
+
MCP6541/1R/1U/2/3/4
Push-Pull Output Sub-Microamp Comparators
Features Description
Low Quiescent Current: 600 nA/comparator (typ.) The Microchip Technology Inc. MCP6541/2/3/4 family
of comparators is offered in single (MCP6541,
Rail-to-Rail Input: V - 0.3V to V + 0.3V
SS DD
MCP6541R, MCP6541U), single with Chip Select (CS)
CMOS/TTL-Compatible Output
(MCP6543), dual (MCP6542) and quad (MCP6544)
Propagation Delay: 4 s (typ., 100 mV Overdrive)
configurations. The outputs are push-pull (CMOS/TTL-
Wide Supply Voltage Range: 1.6V to 5.5V
compatible) and are capable of driving heavy DC or
Available in Single, Dual and Quad
capacitive loads.
Single available in SOT-23-5, SC-70-5 * packages
These comparators are optimized for low power, single-
Chip Select (CS) with MCP6543
supply operation with greater than rail-to-rail input
operation. The push-pull output of the
Low Switching Current
MCP6541/1R/1U/2/3/4 family supports rail-to-rail output
Internal Hysteresis: 3.3 mV (typ.)
swing and interfaces with TTL/CMOS logic. The internal
Temperature Ranges:
input hysteresis eliminates output switching due to inter-
- Industrial: -40C to +85C
nal input noise voltage, reducing current draw. The out-
- Extended: -40C to +125C
put limits supply current surges and dynamic power
consumption while switching. This product family oper-
Typical Applications
ates with a single-supply voltage as low as 1.6V and
draws less than 1 A/comparator of quiescent current.
Laptop Computers
The related MCP6546/7/8/9 family of comparators from
Mobile Phones
Microchip has an open-drain output. Used with a pull-up
Metering Systems
resistor, these devices can be used as level-shifters for
Hand-held Electronics
any desired voltage up to 10V and in wired-OR logic.
RC Timers
* SC-70-5 E-Temp parts not available at this release of
Alarm and Monitoring Circuits
the data sheet.
Windowed Comparators
MCP6541U SOT-23-5 is E-Temp only.
Multi-vibrators
Related Devices
Open-Drain Output: MCP6546/7/8/9
Package Types
MCP6541 MCP6541R MCP6542 MCP6544
PDIP, SOIC, MSOP SOT-23-5 PDIP, SOIC, MSOP PDIP, SOIC, TSSOP
V
OUTA 1 OUTA 1 14 OUTD
NC V 8 DD
1 8 NC OUT 1 5
SS
V 2 OUTB V 2 - + + - 13 V
V -- V V - + 7
2 7 INA INA IND
IN DD 2
DD
++
V + 3 + - V V + 3 12 V +
V + 6
3 6 OUT INA INB INA IND
IN V + 3 4 V
IN IN
V V V
V 4 V + 4 11
SS 5 DD SS
SS 4 5 NC INB
V + 5 10 V +
INB INC
MCP6541 MCP6541U MCP6543
- + + -
V 9 V
6
INB INC
PDIP, SOIC, MSOP
SOT-23-5, SC-70-5 SOT-23-5
OUTB 7 8 OUTC
NC
V V 1 8 CS
OUT 1 5 V
DD 1 5 DD
IN
V
V
V V 2 - 7
DD
2 2 IN
SS SS
+
V + OUT
3 6
V + 3 4 V V + OUT IN
3 4
IN IN IN
V
NC
4 5
SS
2006 Microchip Technology Inc. DS21696E-page 1
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+
-
-MCP6541/1R/1U/2/3/4
Notice: Stresses above those listed under Absolute Maxi-
1.0 ELECTRICAL
mum Ratings may cause permanent damage to the device.
CHARACTERISTICS
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.
Absolute Maximum Ratings
Exposure to maximum rating conditions for extended periods
V - V .........................................................................7.0V
may affect device reliability.
DD SS
Current at Analog Input Pin (V +, V -.........................2 mA
IN IN See Section 4.1.2 Input Voltage and Current
Analog Input (V ) ...................... V - 1.0V to V + 1.0V
Limits
IN SS DD
All other Inputs and Outputs........... V - 0.3V to V + 0.3V
SS DD
Difference Input voltage ....................................... |V - V |
DD SS
Output Short-Circuit Current .................................continuous
Current at Input Pins ....................................................2 mA
Current at Output and Supply Pins ............................30 mA
Storage temperature .....................................-65C to +150C
Maximum Junction Temperature (T )..........................+150C
J
ESD protection on all pins (HBM;MM) ...................4 kV; 400V
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, V = +1.6V to +5.5V, V = GND, T = +25C,V + = V /2,
DD SS A IN DD
V = V , and R =100 k to V /2 (Refer to Figure 1-3).
IN SS L DD
Parameters Sym Min Typ Max Units Conditions
Power Supply
Supply Voltage V 1.6 5.5 V
DD
Quiescent Current per comparator I 0.3 0.6 1.0 A I = 0
Q OUT
Input
Input Voltage Range V V 0.3 V +0.3 V
CMR SS DD
Common Mode Rejection Ratio CMRR 55 70 dB V = 5V, V = -0.3V to 5.3V
DD CM
Common Mode Rejection Ratio CMRR 50 65 dB V = 5V, V = 2.5V to 5.3V
DD CM
Common Mode Rejection Ratio CMRR 55 70 dB V = 5V, V = -0.3V to 2.5V
DD CM
Power Supply Rejection Ratio PSRR 63 80 dB V = V
CM SS
Input Offset Voltage V -7.0 1.5 +7.0 mV V = V (Note 1)
OS CM SS
Drift with Temperature V / T 3 V/C T = -40C to +125C, V = V
OS A A CM SS
Input Hysteresis Voltage V 1.5 3.3 6.5 mV V = V (Note 1)
HYST CM SS
Linear Temp. Co. (Note 2) TC 6.7 V/C T = -40C to +125C, V = V
1 A CM SS
2
Quadratic Temp. Co. (Note 2) TC -0.035 V/C T = -40C to +125C, V = V
2 A CM SS
Input Bias Current I 1 pAV = V
B CM SS
At Temperature (I-Temp parts) I 25 100 pAT = +85C, V = V (Note 3)
B A CM SS
At Temperature (E-Temp parts) I 1200 5000 pA T = +125C, V = V (Note 3)
B A CM SS
Input Offset Current I 1 pA V = V
OS CM SS
13
Common Mode Input Impedance Z 10 ||4 ||pF
CM
13
Differential Input Impedance Z 10 ||2 ||pF
DIFF
Note 1: 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.
2
2: V at different temperatures is estimated using V (T ) = V + (T - 25C) TC + (T - 25C) TC .
HYST HYST A HYST A 1 A 2
3: Input bias current at temperature is not tested for SC-70-5 package.
4: Limit the output current to Absolute Maximum Rating of 30 mA.
DS21696E-page 2 2006 Microchip Technology Inc.