TLC320AD56 datasheet(32/42 Pages) TI1

32 / 42 page

4–6

4.3.8

DAC Channel, DVDD = 5 V or 3 V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Dynamic range

Interchannel isolation

108

Gain error, 0 dB

VO = 0 dB at 1020 Hz

±0.5

Idle channel

broad-band noise

See Note 8

150

µV rms

Idle channel

narrow-band noise

0 – 4 kHz,

See Note 8

µV rms

Channel delay

18/fs

VOO

Output offset voltage

at OUT (differential)

DIN = zero code

Analog output

voltage,

OUTP – OUTM

With internal

reference and

full-scale digital

input,

See Note 9

Differential

VPP

NOTES:

8. The conversion rate is 8 kHz; the out-of-band measurement is made from 4400 Hz to 3 MHz.

9. The digital input to the DAC channel at DIN is in 2’s complement format. The TLC320AD56C is a current

DAC and requires a load resistor for current-to-voltage conversion. This output voltage is across the load

resistor (see Figures 5–1 and 5–2).

4.3.9

Power Supplies, No Load (Unless Otherwise Noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IDD (

)

Power supply current ADC

Operating

IDD (analog)

Power supply current, ADC

Power down

0.5

IDD (di it l1) Power supply current digital

Operating

IDD (digital1) Power supply current, digital

Power down

µA

IDD (di it l2)

Power supply current, digital,

Operating

IDD (digital2)

DVDD = 3.3 V

Power down

µA

Power dissipation

Operating

100

150

Power dissi ation

Power down

2.5

R(IGAIN)

9.6

RLOAD

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