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MCP6546

Open-Drain Output Sub-Microamp Comparators

Microchip Technology 

MCP6546/6R/6U/7/8/9

1.0 ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD - VSS .........................................................................7.0V

Open-Drain output............................................... VSS + 10.5V

Analog Input (VIN+, VIN-)††............. VSS - 1.0V to VDD + 1.0V

All other inputs and outputs ........... VSS – 0.3V to VDD + 0.3V

Difference Input voltage ...................................... |VDD – VSS|

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 (TJ) .......................... +150°C

ESD protection on all pins:

(HBM;MM) .....................................2 kV;200V (MCP6546U)

(HBM;MM) ................................ 4 kV; 200V (all other parts)

† Notice: Stresses above those listed under “Absolute Maxi-

mum 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.

†† See Section 4.1.2 “Input Voltage and Current

Limits”

DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2, VIN– = VSS,

RPU = 2.74 kΩ to VPU = VDD (Refer to Figure 1-3).

Parameters

Sym

Min Typ Max Units

Conditions

Power Supply

Supply Voltage

Quiescent Current

(per comparator)

VDD

1.6

—

5.5

V VPU ≥ VDD

IQ

0.3

0.6

1

µA IOUT = 0

Input

Input Voltage Range

VCMR VSS − 0.3 — VDD + 0.3 V

Common Mode Rejection Ratio

CMRR

55

70

—

dB VDD = 5V, VCM = -0.3V to 5.3V

Common Mode Rejection Ratio

CMRR

50

65

—

dB VDD = 5V, VCM = 2.5V to 5.3V

Common Mode Rejection Ratio

CMRR

55

70

—

dB VDD = 5V, VCM = -0.3V to 2.5V

Power Supply Rejection Ratio

PSRR

63

80

—

dB VCM = VSS

Input Offset Voltage

VOS

-7.0

±1.5

+7.0

mV VCM = VSS (Note 1)

Drift with Temperature

ΔVOS/ΔTA

—

±3

—

µV/°C TA = -40°C to +125°C, VCM = VSS

Input Hysteresis Voltage

VHYST

1.5

3.3

6.5

mV VCM = VSS (Note 1)

Linear Temp. Co.

Quadratic Temp. Co.

TC1

—

6.7

—

µV/°C TA = -40°C to +125°C, VCM = VSS (Note 2)

TC2

—

-0.035

—

µV/°C2 TA = -40°C to +125°C, VCM = VSS (Note 2)

Input Bias Current

IB

—

1

—

pA VCM = VSS

At Temperature (I-Temp parts)

IB

—

25

100

pA TA = +85°C, VCM = VSS (Note 3)

At Temperature (E-Temp parts)

IB

—

1200 5000

pA TA = +125°C, VCM = VSS (Note 3)

Input Offset Current

Common Mode Input Impedance

Differential Input Impedance

IOS

ZCM

ZDIFF

—

±1

—

pA VCM = VSS

—

1013||4

—

Ω||pF

—

1013||2

—

Ω||pF

Note 1: The input offset voltage is the center of the input-referred trip points. The input hysteresis is the difference between the

input-referred trip points.

2: VHYST at differential temperatures is estimated using: VHYST (TA) = VHYST + (TA -25°C) TC1 + (TA - 25°C)2TC2.

3: Input bias current at temperature is not tested for the SC-70-5 package

4: Do not short the output above VSS + 10V. Limit the output current to Absolute Maximum Rating of 30 mA. The minimum

VPU test limit was VDD before Dec. 2004 (week code 52).

DS21714E-page 2

© 2006 Microchip Technology Inc.

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