MCP48FVB28 datasheet(13/112 Pages) MICROCHIP

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DS20006362A-page 13

MCP48FXBX4/8

DC CHARACTERISTICS (CONTINUED)

Standard Operating Conditions (unless otherwise specified):

Operating Temperature: -40°C

 TA  +125°C (Extended).

All parameters apply across the specified operating ranges unless noted.

VDD = +2.7V to 5.5V, VREF = +2.048V to VDD, VSS = 0V, Gx = 0, RL = 5 k from VOUT to GND, CL = 100 pF.

Typical specifications represent values for VDD = 5.5V, TA = +25°C.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

-3 dB Bandwidth

(see B.16 “-3 dB

Bandwidth”)

—

86.5

—

kHz

VREF = 2.048V ±0.1V,

VRnB:VRnA = 10, Gx = 0

—67.7

—

kHz

VREF = 2.048V ±0.1V,

VRnB:VRnA = 10, Gx = 1

Output Amplifier

Minimum Output

Voltage

VOUT(MIN)

—

0.01

—

1.8V

 VDD  5.5V,

output amplifier’s minimum drive

Maximum Output

Voltage

VOUT(MAX)

—VDD – 0.016

—

1.8V

 VDD  5.5V,

output amplifier’s maximum drive

Phase Margin

—

°C

CL = 400 pF, RL = 

Slew Rate(9)

—

0.44

—

V/µs

RL = 5 k

Short-Circuit Current

ISC

Short to VSS DAC Code = Full Scale

Short to VDD DAC Code = 000h

Internal Band Gap

Band Gap Voltage

VBG

1.18

1.22

1.26

Band Gap Voltage

Temperature

Coefficient

VBGTC

—15

—

ppm/°C

Operating Range

VDD

2.0

—

5.5

VREF pin voltage stable

2.2

—

5.5

VOUT output linear

External Reference (VREF)

Input Range(1)

VREF

VSS

—VDD – 0.04

VRnB:VRnA = 11 (Buffered mode)

VSS

—VDD

VVRnB:VRnA = 10 (Unbuffered

mode)

Input Capacitance

CREF

—1

—

VRnB:VRnA = 10 (Unbuffered

mode)

Total Harmonic

Distortion(1)

THD

—

-64

—

VREF = 2.048V ±0.1V,

VRnB:VRnA = 10, Gx = 0,

Frequency = 1 kHz

Dynamic Performance

Major Code

Transition Glitch (see

B.14 “Major Code

Transition Glitch”)

—

nV-s

1 LSb change around major carry

(7FFh to 800h)

Digital Feedthrough

(see B.15 “Digital

Feedthrough”)

——

<10

—

nV-s

Note 1: This parameter is ensured by design.

9: Within 1/2 LSb of final value when code changes from 1/4 to 3/4 of FSR. (Example: 400h to C00h in a 12-bit

device.)

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