DAC7553_14 datasheet(3/26 Pages) TI1

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ELECTRICAL CHARACTERISTICS

DAC7553

SLAS477 – SEPTEMBER 2005

DD = 2.7 V to 5.5 V, VREF = VDD, RL = 2 kΩ to GND; CL = 200 pF to GND; all specifications –40°C to 105°C, unless otherwise

specified

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

STATIC PERFORMANCE(1)

Resolution

Bits

Relative accuracy

±0.35

±1

LSB

Differential nonlinearity

Specified monotonic by design

±0.08

±0.5

LSB

Offset error

±12

Zero-scale error

All zeroes loaded to DAC register

±12

Gain error

±0.15

%FSR

Full-scale error

±0.5

%FSR

Zero-scale error drift

µV/°C

Gain temperature coefficient

ppm of FSR/°C

PSRR

VDD = 5 V

0.75

mV/V

OUTPUT CHARACTERISTICS(2)

Output voltage range

VREF

Output voltage settling time

RL = 2 kΩ; 0 pF < CL < 200 pF

µs

Slew rate

1.8

V/µs

Capacitive load stability

RL = ∞

470

RL = 2 kΩ

1000

Digital-to-analog glitch impulse

1 LSB change around major carry

0.1

nV-s

Channel-to-channel crosstalk

1-kHz full-scale sine wave,

–100

outputs unloaded

Digital feedthrough

0.1

nV-s

Output noise density (10-kHz offset

120

nV/rtHz

frequency)

Total harmonic distortion

FOUT = 1 kHz, FS = 1 MSPS,

–85

BW = 20 kHz

DC output impedance

Ω

Short-circuit current

VDD = 5 V

VDD = 3 V

Power-up time

Coming out of power-down mode,

VDD = 5 V

µs

Coming out of power-down mode,

VDD = 3 V

REFERENCE INPUT

VREF Input range

VDD

Reference input impedance

VREFA and VREFB shorted together

Ω

VREFA = VREFB = VDD = 5 V,

100

250

VREFA and VREFB shorted together

Reference current

µA

VREFA = VREFB = VDD = 3 V,

123

VREFA and VREFB shorted together

LOGIC INPUTS(2)

Input current

±1

µA

VIN_L, Input low voltage

IOVDD ≥ 2.7 V

0.3 IOVDD

VIN_H, Input high voltage

IOVDD ≥ 2.7 V

0.7 IOVDD

Pin capacitance

(1)

Linearity tested using a reduced code range of 30 to 4065; output unloaded.

(2)

Specified by design and characterization, not production tested. For 1.8 V < IOVDD < 2.7 V, It is recommended that

VIH = IOVDD, VIL = GND.

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