AT5510
Preliminary Product Information
120mA, Current Sinking,
10-bit I2C DAC for VCM Driver
Terminology
z
Resolution
Resolution of DAC is the number of bits to present the analog output signal.
z
Integral nonlinearity (INL)
Integral nonlinearity is a measurement of the maximum deviation, in LSB, from a straight line
passing through the endpoints of the DAC transfer function. A typical INL vs. code plot is shown in
Figure 3.
z
z
z
z
Differential nonlinearity (DNL)
Differential nonlinearity is the difference between the measured and ideal 1 LSB change by any
two adjacent code. A typical DNL vs. code plot is shown in Figure 4.
Zero-code error
Zero-code error is a measurement of the output error when zero code (0x0000) is loaded to the
DAC register. The zero-code error is positive in AT5510.
Gain error
Gain error is a measurement of the span error of the DAC. It is the deviation in slope of the DAC
transfer characteristic from the ideal, expressed as percent of the full-scale range.
Offset error
Offset error is a measurement of the difference between actual output current (ISINK) and ideal
output current (Io). It is measured on the AT5510 with Code 16 loaded into the DAC register.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
9/20/2007 REV:0.2
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
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AIMTRON [ AIMTRON TECHNOLOGY ]
