TLV5625

2.7-V TO 5.5-V LOW-POWER DUAL 8-BIT DIGITAL-TO-ANALOG

CONVERTER WITH POWER DOWN

SLAS233A – JULY 1999 – REVISED MARCH 2000

13

POST OFFICE BOX 655303

APPLICATION INFORMATION

0.1

µF

Analog Ground Plane

1

2

3

4

8

7

6

5

Figure 14. Power-Supply Bypassing

definitions of specifications and terminology

integral nonlinearity (INL)

The relative accuracy or integral nonlinearity (INL), sometimes referred to as linearity error, is the maximum

deviation of the output from the line between zero and full scale excluding the effects of zero code and full-scale

errors.

differential nonlinearity (DNL)

The differential nonlinearity (DNL), sometimes referred to as differential error, is the difference between the

measured and ideal 1 LSB amplitude change of any two adjacent codes. Monotonic means the output voltage

changes in the same direction (or remains constant) as a change in the digital input code.

Zero-scale error is defined as the deviation of the output from 0 V at a digital input value of 0.

Gain error is the error in slope of the DAC transfer function.

signal-to-noise ratio + distortion (S/N+D)

S/N+D is the ratio of the rms value of the output signal to the rms sum of all other spectral components below

the Nyquist frequency, including harmonics but excluding dc. The value for S/N+D is expressed in decibels.

spurious free dynamic range (SFDR)

SFDR is the difference between the rms value of the output signal and the rms value of the largest spurious

signal within a specified bandwidth. The value for SFDR is expressed in decibels.

total harmonic distortion (THD)

THD is the ratio of the rms sum of the first six harmonic components to the rms value of the fundamental signal

and is expressed in decibels.