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WM5620L Datasheet(PDF) 4 Page - Wolfson Microelectronics plc

Part No. WM5620L
Description  3 & 5V Quad 8-Bit Voltage Output DAC with Serial Interface
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Maker  WOLFSON [Wolfson Microelectronics plc]
Homepage  http://www.wolfsonmicro.com
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WM5620L Datasheet(HTML) 4 Page - Wolfson Microelectronics plc

 
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Wolfson Microelectronics
4
WM5620L, WM5620
Electrical Characteristics: WM5620 & WM5620L
VDD = 2.7V to 5.5V, GND = 0 V, RL = 10 k
Ω, CL = 100 pF, TA = full range, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Reference Inputs
Reference input voltage VREF
A, B, C, D, inputs
GND
VDD - 1.5
V
Reference input
A, B, C, D, inputs
15
pF
capacitance
Reference feedthrough
A, B, C, D, inputs (note 11)
- 60
dB
Channel to channel
A, B, C, D, inputs (note 12)
-60
dB
isolation
Dynamic Performance
Output settling time
To 1/2 LSB, VDD = 3 V & 5V
10
µs
(note13)
Output slew rate
1V/
µs
Input bandwidth
(note 14)
100
kHz
Large Signal Bandwidth
Measured at -3dB point
100
kHz
Digital Crosstalk
Clk = 1MHz sq wave measured at
-50
dB
DACA - DACD
Electrical Characteristics: WM5620 & WM5620L (continued)
Notes:
1.
Absolute Maximum Ratings are stress ratings only.
Permanent damage to the device may be caused by
continuously operating at or beyond these limits.
Device functional operating range limits are given
under Recommended Operating Conditions.
Guaranteed performance specifications are given
under Electrical Characteristics at the test conditions
specified.
2.
Total Unadjusted Error is the sum of integral linear-
ity error, zero code error and full scale error over the
input code range.
3.
Differential Nonlinearity (DNL) is the difference
between the measured and ideal 1 LSB amplitude
change of any two adjacent codes. A guarantee of
monotonicity means the output voltage changes in
the same direction (or remains constant) as a change
in the digital input code.
4.
Integral Nonlinearity (INL) 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).
5.
Zero code error is the deviation from zero voltage
output when the digital input code is zero.
6. Zero code error temperature coefficient is given by:
ZCETC = (ZCE(Tmax) - ZCE(Tmin))/VREF x 10
6/
(Tmax - Tmin)
7. Zero-code Error Rejection Ratio (ZCE-RR) is meas-
ured by varying the VDD voltage, from 4.5 to 5.5 V
d.c., and measuring the proportion of this signal im-
posed on the zero-code output voltage.
8. Full-scale error is the deviation from the ideal full-
scale output (VREF - 1 LSB) with an output load of
10k
9. Full-Scale Temperature Coefficient is given by:
FSETC = (FSE(Tmax) - FSE(Tmin))/VREF x 106/(Tmax -
Tmin)
10. Full Scale Error Rejection Ratio (FSE-RR) is meas-
ured by varying the VDD voltage, from 4.5 to 5.5 V
d.c., and measuring the proportion of this signal im-
posed on the full-scale output voltage.


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