DAC5675

SLAS352C − DECEMBER 2001 − REVISED AUGUST 2004

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DESCRIPTION (continued)

The DAC5675 has been specifically designed for a differential transformer coupled output with a 50-

Ω doubly

terminated load. With the 20-mA full-scale output current, both a 4:1 impedance ratio (resulting in an output

power of 4 dBm) and 1:1 impedance ratio transformer (-2 dBm) is supported. The last configuration is preferred

for optimum performance at high output frequencies and update rates. The output voltage compliance ranges

from 2.15 V to AVDD + 0.03 V.

An accurate on-chip 1.2-V temperature compensated bandgap reference and control amplifier allows the user

to adjust this output current from 20 mA down to 2 mA. This provides 20-dB gain range control capabilities.

Alternatively, an external reference voltage may be applied. The DAC5675 features a SLEEP mode, which

reduces the standby power to approximately 150 mW.

The DAC5675 is available in a 48-pin HTQFP thermally enhanced PowerPad package. This package increases

thermal efficiency in a standard size IC package. The device is characterized for operation over the industrial

temperature range of −40

°C to 85°C.

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D0B

D0A

D1B

D1A

D2B

D2A

D3B

D3A

D4B

D4A

D5B

D5A

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1

2

3

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D13A

D13B

D12A

D12B

D11A

D11B

D10A

D10B

D9A

D9B

D8A

D8B

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48

42

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41

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PHP PACKAGE

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AVAILABLE OPTIONS

TA

PACKAGED DEVICE

TA

48-HTQFP PowerPAD PLASTIC QUAD FLATPACK

−40

°C to 85°C

DAC5675IPHP

−40

°C to 85°C

DAC5675IPHPR