MCP6281 datasheet(2/36 Pages) MICROCHIP

2 / 36 page

MCP6281/1R/2/3/4/5

DS21811E-page 2

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD –VSS ........................................................................7.0V

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

Analog Inputs (VIN+, VIN–) †† ........ VSS –1.0VtoVDD +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 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)

.............. ≥ 4 kV; 400V

† 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 4.1.2 “Input Voltage and Current Limits”.

DC ELECTRICAL SPECIFICATIONS

Electrical Characteristics: Unless otherwise indicated, TA = +25 C, VDD = +2.2V to +5.5V, VSS =GND, VOUT ≈ VDD/2,

VCM = VDD/2, VL = VDD/2, RL = 10 kΩ to VL and CS is tied low. (refer to Figure 1-2 and Figure 1-3).

Parameters

Sym

Min

Typ

Max

Units

Conditions

Input Offset

Input Offset Voltage

VOS

-3.0

—

+3.0

VCM = VSS (Note 1)

Input Offset Voltage

(Extended Temperature)

VOS

-5.0

—

+5.0

TA= -40°C to +125°C,

VCM = VSS (Note 1)

Input Offset Temperature Drift

ΔV

OS/ΔTA

—±1.7—

µV/°C TA= -40°C to +125°C,

VCM = VSS (Note 1)

Power Supply Rejection Ratio

PSRR

—

VCM = VSS (Note 1)

Input Bias, Input Offset Current and Impedance

Input Bias Current

—

±1.0

—

Note 2

At Temperature

—

200

TA= +85°C (Note 2)

At Temperature

—2

TA= +125°C (Note 2)

Input Offset Current

IOS

—

±1.0

—

Note 3

Common Mode Input Impedance

ZCM

—1013||6

—

Ω||pF Note 3

Differential Input Impedance

ZDIFF

—1013||3

—

Ω||pF Note 3

Common Mode (Note 4)

Common Mode Input Range

VCMR

VSS − 0.3

—

VDD + 0.3

Common Mode Rejection Ratio

CMRR

—

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

Common Mode Rejection Ratio

CMRR

—

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

Open-Loop Gain

DC Open-Loop Gain (Large Signal)

AOL

110

—

VOUT = 0.2V to VDD – 0.2V,

VCM =VSS (Note 1)

Output

Maximum Output Voltage Swing

VOL, VOH

VSS + 15

—

VDD – 15

0.5V input overdrive

Output Short Circuit Current

ISC

—±25

—

Power Supply

Supply Voltage

VDD

2.2

—

6.0

(Note 5)

Quiescent Current per Amplifier

300

450

570

µA

IO = 0

Note

The MCP6285’s VCM for op amp B (pins VOUTA/VINB+ and VINB–) is VSS + 100 mV.

The current at the MCP6285’s VINB– pin is specified by IB only.

This specification does not apply to the MCP6285’s VOUTA/VINB+ pin.

The MCP6285’s VINB– pin (op amp B) has a common mode range (VCMR) of VSS + 100 mV to VDD – 100 mV.

The MCP6285’s VOUTA/VINB+ pin (op amp B) has a voltage range specified by VOH and VOL.

All parts with date codes November 2007 and later have been screened to ensure operation at VDD = 6.0V. However,

the other minimum and maximum specifications are measured at 2.4V and/or 5.5V.

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