DAC900-Q1

SBAS505 – JUNE 2010

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ELECTRICAL CHARACTERISTICS (continued)

At TA = -40°C to +105°C, +VA = +5V, +VD = +5V, differential transformer coupled output, 50Ω doubly terminated, unless

otherwise specified

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ppmFSR/

Offset Drift With Internal Reference

±0.1

°C

TA = +25°C

-0.2

+0.2

Power-Supply Rejection, +VA

%FSR/V

TA = -40°C to +105°C

-1.4

+1.4

TA = +25°C

-0.025

+0.025

Power-Supply Rejection, +VD

%FSR/V

TA = -40°C to +105°C

-0.4

+0.4

Output Noise

IOUT = 20mA, RLOAD = 50Ω

50

pA/

√Hz

Output Resistance

200

k

Ω

Output Capacitance

IOUT, IOUT to Ground

12

pF

REFERENCE

Reference Voltage

+1.24

V

Reference Tolerance

±10

%

ppmFSR/

Reference Voltage Drift

±50

°C

Reference Output Current

10

µA

Reference Input Resistance

1

m

Ω

Reference Input Compliance Range

0.1

1.25

V

Reference Small-Signal Bandwidth(4)

1.3

MHz

DIGITAL INPUTS

Logic Coding

Straight Binary

Latch Command

Rising Edge of Clock

Logic High Voltage, VIH

+VD = +5V

3.5

5

V

Logic Low Voltage, VIL

+VD = +5V

0

1.2

V

Logic High Voltage, VIH

+v = +3V

2

3

V

Logic Low Voltage, VIL

+VD = +3V

0

0.8

V

Logic High Current, IIH

(5)

+VD = +5V

±20

V

Logic Low Current, IIL

+VD = +5V

±20

µA

Input Capacitance

5

pF

POWER SUPPLY

Supply Voltages

+VA

+2.7

+5

+5.5

V

+VD

+2.7

+5

+5.5

V

Supply Current(6)

IVA

24

30

mA

IVA, Power-Down Mode

1.1

2

mA

IVD

8

15

mA

Power Dissipation

+5V, IOUT = 20mA

170

230

mW

+3V, IOUT = 2mA

50

mW

Power-Down Mode

45

mW

Thermal Resistance, qJA

TSSOP-28

50

°C/W

(4)

Reference bandwidth depends on size of external capacitor at the BW pin and signal level.

(5)

Typically 45mA for the PD pin, which has an internal pulldown resistor.

(6)

Measured at fCLOCK = 50MSPS and fOUT = 1.0MHz.

4

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Product Folder Link(s): DAC900-Q1