MCP621 datasheet(3/44 Pages) MICROCHIP

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DS22188A-page 3

MCP621/2/5

1.0

ELECTRICAL CHARACTERISTICS

1.1

Absolute Maximum Ratings †

VDD –VSS .......................................................................6.5V

Current at Input Pins ....................................................±2 mA

Analog Inputs (VIN+ and VIN–) †† . VSS – 1.0V to VDD +1.0V

All other Inputs and Outputs .......... VSS – 0.3V to VDD +0.3V

Output Short Circuit Current ................................ Continuous

Current at Output and Supply Pins ..........................±150 mA

Storage Temperature ...................................-65°C to +150°C

Max. Junction Temperature ........................................ +150°C

ESD protection on all pins (HBM, MM)

................≥ 1 kV, 200V

† 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.

†† See Section 4.2.2 “Input Voltage and Current Limits”.

1.2

Specifications

DC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to +5.5V, VSS = GND, VCM = VDD/3,

VOUT ≈ VDD/2, VL = VDD/2, RL = 2 kΩ to VL and CAL/CS =VSS (refer to Figure 1-2).

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input Offset

Input Offset Voltage

VOS

-200

—

+200

µV

After calibration (Note 1)

Input Offset Voltage Trim Step Size

VOSTRM

—

200

µV

(Note 2)

Input Offset Voltage Drift

ΔVOS/ΔTA

—±2.0

—

µV/°C TA= -40°C to +125°C

Power Supply Rejection Ratio

PSRR

—

Input Current and Impedance

Input Bias Current

—5

—

Across Temperature

—

100

—

TA= +85°C

Across Temperature

—

1700

5,000

TA= +125°C

Input Offset Current

IOS

—±10

—

Common Mode Input Impedance

ZCM

—1013||9

—

Ω||pF

Differential Input Impedance

ZDIFF

—1013||2

—

Ω||pF

Common Mode

Common-Mode Input Voltage Range

VCMR

VSS − 0.3

—

VDD − 1.3

(Note 3)

Common-Mode Rejection Ratio

CMRR

—

VDD = 2.5V, VCM = -0.3 to 1.2V

CMRR

—

VDD = 5.5V, VCM = -0.3 to 4.2V

Open-Loop Gain

DC Open-Loop Gain (large signal)

AOL

117

—

VDD = 2.5V, VOUT = 0.3V to 2.2V

AOL

126

—

VDD = 5.5V, VOUT = 0.3V to 5.2V

Output

Maximum Output Voltage Swing

VOL, VOH

VSS +20

—

VDD − 20

VDD = 2.5V, G = +2,

0.5V Input Overdrive

VOL, VOH

VSS +40

—

VDD − 40

VDD = 5.5V, G = +2,

0.5V Input Overdrive

Output Short Circuit Current

ISC

±40

±85

±130

VDD = 2.5V (Note 4)

ISC

±35

±70

±110

VDD = 5.5V (Note 4)

Note 1:

Describes the offset (under the specified conditions) right after power up, or just after the CAL/CS pin is toggled. Thus,

1/f noise effects (an apparent wander in VOS; see Figure 2-35) are not included.

Increment between adjacent VOS trim points; Figure 2-3 shows how this affects the VOS repeatability.

See Figure 2-6 and Figure 2-7 for temperature effects.

The ISC specifications are for design guidance only; they are not tested.

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