MAX5548 datasheet(2/15 Pages) MAXIM

2 / 15 page

Dual, 8-Bit, Programmable, 30mA

High-Output-Current DAC

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ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VDD to GND .............................................................-0.3V to +6V

OUTA, OUTB to GND .................................-0.3V to (VDD + 0.3V)

REFIN CS/AO, DOUT/AI, SPI/I2C, FSADJA,

FSADJB to GND ......................................-0.3V to (VDD + 0.3V)

SCLK/SCL, DIN/SDA ................................................-0.3V to +6V

Continuous Power Dissipation (TA = +85°C)

16-Pin Thin QFN (derate 17.5mW/°C above +70°C) ..1398.6mW

Operating Temperature Range ...........................-40°C to +85°C

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

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

Lead Temperature (soldering, 10s) ................................+300°C

ELECTRICAL CHARACTERISTICS

(VDD = +2.7V to +5.25V, GND = 0, VREFIN = +1.25V, internal reference, RFSADJ_ = 20k

Ω; compliance voltage = (VDD - 0.6V),

VSCLK/SCL = 0, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VDD = +3.0V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

STATIC PERFORMANCE—ANALOG SECTION

Resolution

Bits

Integral Nonlinearity

INL

IOUT_ = 1mA to 30mA (Note 2)

±1

LSB

Differential Nonlinearity

DNL

Guaranteed monotonic

±1

LSB

Offset

IOS

-13

-4

LSB

Zero-Scale Error

IOUT_ = 1mA to 30mA, code = 0x00

µA

Full-Scale Error

IOUT_ = 1mA to 30mA, code = 0xFF,

includes offset

-4

LSB

REFERENCE

Internal Reference Range

1.21

1.25

1.29

Internal Reference Tempco

ppm/°C

External Reference Range

0.5

1.5

External Reference Input Current

108

225

µA

DAC OUTPUTS

Full-Scale Current

(Note 3)

Output Current Leakage in

Shutdown

±1

µA

Output Capacitance

IOUT_ = 30mA

TA = +25°C

0.55

Current Source Dropout Voltage

(VDD - VOUT_)

IOUT_ = 20mA

TA = -40°C to +85°C

0.6

Output Impedance at Full-Scale

Current

100

Ω

Capacitive Load to Ground

CLOAD

Series Inductive Load

LLOAD

100

Maximum FSADJ_ Capacitive

Load

CFSADJ_

DYNAMIC PERFORMANCE

Settling Time

CLOAD = 24pF, LLOAD = 27nH (Note 4)

µs

Digital Feedthrough

nVs

Digital-to-Analog Glitch Impulse

nVs

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