5

FN8215.1

October 25, 2005

D/A CONVERTER CHARACTERISTICS (See pg. 5 for standard conditions)

Notes: 1.

LSB is defined as

divided by the resistance between R1 or R2 to Vss.

2.

expressed in LSB.

the output of the DAC, when the input changes by one code step. It is expressed in LSB. The measured values are adjusted for Offset

ing the measured transfer curve for Offset and Full Scale Error. It is expressed in LSB.

3.

These parameters are periodically sampled and not 100% tested.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions / Notes

IFS

Iout full scale current

1.56

1.58

1.6

mA

DAC input Byte = FFh,

Source or sink mode, V(Iout) is

Vcc–1.2V in source mode and

1.2V in sink mode.

See notes 1 and 2.

Iout D/A converter offset error

1

1

LSB

Iout D/A converter full scale error

-2

2

LSB

Iout D/A converter

Differential Nonlinearity

-0.5

0.5

LSB

Iout D/A converter Integral

Nonlinearity with respect to a

straight line through 0 and the full

scale value

-1

1

LSB

VISink

I1 Sink Voltage Compliance

1.2

Vcc

V

In this range the current at I1

vary < 1%

VISource

I1 Source Voltage Compliance

0

Vcc -

1.2

V

In this range the current at I1

vary < 1%

I1 overshoot on D/A Converter data

byte transition

0

µA

DAC input byte changing from

00h to FFh and vice

versa, V(I1) is Vcc - 1.2V in

source mode and 1.2V in sink

mode.

See note 3.

I1 undershoot on D/A Converter

data byte transition

0

µA

I1 rise time on D/A Converter data

byte transition; 10% to 90%

530

µs

Temperature coefficient of output

current Iout

±200

ppm/°C

See Figure 5.

2

3

V(VRef)

255

x

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X96011