WM5621 查看數據表（PDF） - Wolfson Microelectronics plc
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WM5621 Datasheet PDF : 14 Pages
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Electrical Characteristics (continued)
WM5621L
12. Full Scale Error Rejection Ratio (FSE-RR) is
measured by varying the VDD voltage, from 4.75 to
5.25 V d.c., and measuring the proportion of this
signal imposed on the full-scale output voltage.
13. Linearity is only specified for DAC codes 1 through
255.
14. The ACT bit is latched on falling edge of EN.
15. Reference feedthrough is measured at any DAC out-
put with an input code = 00 hex with a Vref input = 1Vdc
+ 1 Vpp at 10kHz.
16. Channel-to-channel isolation is measured by setting
the input code of one DAC to FF hex and the code of
all other DACs to 00 hex with Vref input = 1Vdc + 1
Vpp at 10kHz.
17. Reference bandwidth is the -3dB bandwidth with an
ideal input at Vref = 1.25 Vdc + 2 Vpp and with a dig-
ital input code of full-scale (range set to x1 and Vdd =
5V)
Typical Performance Characteristics
Typical DNL, INL and TUE at VDD = 5 V
Differential Nonlinearity
Vd d = 5 .0 V, Vre f = 2 .5 V , R ang e = x1 @
2 5' C
VDD = 5.0, VREF = 2.5V, Range = x1 at 25oC
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
0
32 64 96 128 160 192 224 256
Input CCoodede
Total Unadjusted Error
V = 5.0, V = 2.5V, Range = x1 at 25 C DD REF Vdd = 5.0 V, Vref = 2.5 V, Rang e = x 1 @ 25 'C
Total Unad justed Er ror
o
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
0
32 64 96 128 160 192 224 256
Input CCoodede
Integral Nonlinearity
V = 5.0, V = 2.5V, Range = x1 at 25 C Vdd = 5 .0V, Vre f = 2. 5V, Ra ng e = x1 @ 25 'C
I ntegral Non Li neari ty
o
DD
REF
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
0
32 64 96 128 160 192 224 256
InputCoCdeode
Differential Nonlinearity
V = 5.0, V = 2.0V, Range = x2 at 25 C DD REF Vdd = 5 .0V, Vre f = 2 .0V, Ran ge = x2 @ 25 'C
Differenti al Non Li neari ty
o
0.2
0.15
0.1
0.05
0
-0.05
-0.1
-0.15
-0.2
0
32 64 96 128 160 192 224 256
Co d e
Input Code
Wolfson Microelectronics
5
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