MCP4728 datasheet(3/66 Pages) MICROCHIP

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DS22187C-page 3

MCP4728

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

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

All inputs and outputs w.r.t VSS .................–0.3V to VDD+0.3V

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

Current at Supply Pins ............................................. ±110 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 rat-

ings” may cause permanent damage to the device. This is a

stress rating only and functional operation of the device at

these or any other conditions above those indicated in the

operation listings of this specification is not implied. Exposure

to maximum rating conditions for extended periods may affect

device reliability

ELECTRICAL CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, all parameters apply at V

DD = + 2.7V to 5.5V, VSS = 0V,

RL = 5 kΩ, CL = 100 pF, GX = 1, TA = -40°C to +125°C. Typical values are at +25°C, VIH = VDD, VIL = VSS.

Parameter

Symbol

Min

Typical

Max

Units

Conditions

Power Requirements

Operating Voltage

VDD

2.7

5.5

Supply Current with

External Reference

(VREF = VDD )

(Note 1)

IDD_EXT

—

800

1400

µA

VREF = VDD, VDD = 5.5V

All 4 channels are in normal mode.

—

600

—

µA

3 channels are in normal mode,

1 channel is powered down.

—

400

—

µA

2 channels are in normal mode,

2 channel are powered down.

—

200

—

µA

1 channel is in normal mode,

3 channels are powered down.

Power-Down Current with-

External Reference

IPD_EXT

—

All 4 channels are powered down.

(VREF = VDD)

Supply Current with

Internal Reference

(VREF = Internal)

(Note 1)

IDD_INT

—

800

1400

µA

VREF = Internal Reference

VDD = 5.5V

All 4 channels are in normal mode.

—

600

—

µA

3 channels are in normal mode,

1 channel is powered down.

—

400

—

µA

2 channels are in normal mode,

2 channels are powered down.

—

200

—

µA

1 channel is in normal mode,

3 channels are powered down.

Power-Down Current with

Internal Reference

IPD_INT

—

µA

All 4 channels are powered down.

VREF = Internal Reference

Note 1: All digital input pins (SDA, SCL, LDAC) are tied to “High”, Output pins are unloaded, code = 0x000.

2: The power-up ramp rate measures the rise of V

DD over time.

3: This parameter is ensured by design and not 100% tested.

4: This parameter is ensured by characterization and not 100% tested.

5: Test code range: 100 - 4000 codes, V

REF = VDD, VDD = 5.5V.

6: Time delay to settle to a new reference when switching from external to internal reference or vice versa.

7: This parameter is indirectly tested by Offset and Gain error testing.

8: Within 1/2 LSB of the final value when code changes from 1/4 of to 3/4 of full scale.

9: This time delay is measured from the falling edge of ACK pulse in I2C command to the beginning of V

OUT.

This time delay is not included in the output settling time specification.

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