MCP4821 datasheet(2/36 Pages) MICROCHIP

2 / 36 page

MCP4821/MCP4822

DS21953A-page 2

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings †

VDD............................................................................................................. 6.5V

All inputs and outputs ...................AVSS – 0.3V to VDD + 0.3V

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

Current at Supply Pins ...............................................±50 mA

Current at Output Pins ...............................................±25 mA

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

Ambient temp. with power applied ................-55°C to +125°C

ESD protection on all pins

........... ≥ 4 kV (HBM), ≥ 400V (MM)

Maximum Junction Temperature (TJ) . .........................+150°C

† Notice: Stresses above those listed under “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.

5V AC/DC CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = 5V, AVSS = 0V, VREF = 2.048V, output buffer gain (G) = 2x,

RL = 5 kΩ to GND, CL = 100 pF, TA = -40 to +85°C. Typical values at +25°C.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Power Requirements

Input Voltage

VDD

2.7

—

5.5

Input Current - MCP4821

Input Current - MCP4822

IDD

—

330

415

400

750

µA

Digital inputs grounded, Output

unloaded, code = 0x000

Hardware Shutdown Current

ISHDN

—0.3

µA

Software Shutdown Current

ISHDN_SW

—3.3

µA

Power-on-Reset Threshold

VPOR

—2.0

—

DC Accuracy

Resolution

—

Bits

INL Error

INL

-12

LSb

DNL (Note 1)

DNL

-0.75

±0.2

+0.75

LSb

Device is monotonic

Offset Error

VOS

-1

±0.02

% of FSR

Code = 0x000h

Offset Error Temperature

Coefficient

VOS/°C

—

0.16

—

ppm/°C

-45°C to 25°C

—

-0.44

—

ppm/°C

+25°C to 85°C

Gain Error

-2

-0.10

% of FSR

Code 0xFFFh, not including offset

error

Gain Error Temperature

Coefficient

ΔG/°C

—

-3

—

ppm/°C

Internal Voltage Reference (VREF)

Nominal Reference Voltage

VREF

2.008

2.048

2.088

VOUTA when G = 1x and

Code = 0xFFFh

Temperature Coefficient

(Note 1)

ΔV

REF/°C

—

125

325

ppm/°C

-40°C to 0°C

—

0.25

0.65

LSb/°C

-40°C to 0°C

—

160

ppm/°C

0°C to +85°C

—

0.09

0.32

LSb/°C

0°C to +85°C

Output Noise (VREF Noise)

ENREF

(0.1-10 Hz)

—

290

—

µVp-p

Code = 0xFFFh, G = 1

Output Noise Density

eNREF

(1 kHz)

—1.2

—

µV/

√Hz

Code = 0xFFFh, G = 1

eNREF

(10 kHz)

—1.0

—

µV/

√Hz

Code = 0xFFFh, G = 1

1/f Corner Frequency

fCORNER

—

400

—

Note

By design, not production tested.

Too small to quantify.

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