WM5621 查看數據表（PDF） - Wolfson Microelectronics plc
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WM5621 Datasheet PDF : 14 Pages
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WM5621L
Electrical Characteristics
VDD = 3 V to 3.6V, GND = 0 V, VREF = 1.25 V, RL = 10 kΩ, CL = 100 pF, x1 gain output range, TA = full range
unless otherwise stated.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX UNIT
Output slew rate rising DACA
Output slew rate falling DACA
Output slew rate DACB,C,D
Output settling time rising
To 1/2 LSB, VDD=3V
0.8
V/µS
0.5
V/µS
1
V/µS
20
µS
DACA
Output settling time falling
To 1/2 LSB, VDD=3V
75
µS
DACA
Output settling time rising
To 1/2 LSB, VDD=3V
10
µS
DACB,C,D
Output settling time falling
To 1/2 LSB, VDD=3V
75
µS
DACB,C,D
Output settling time HWACT
To 1/2 LSB, VDD=3V
40 120* µS
or ACT↑ to output volts DACA
(note 14)
Output settling time HWACT
To 1/2 LSB, VDD=3V
25
75* µS
or ACT↑ to output volts
DACB,C,D (note 14)
Large signal Bandwidth
Measured at -3dB point
100
KHz
Digital crosstalk
CLK=1MHz sq. wave
-50
dB
measured at DACA-DACD
Reference feedthrough
A,B,C,D inputs (note 15)
-60
dB
Channel-to-channel isolation
5
Channel-to-channel isolation
when in shutdown
A,B,C,D inputs (note 16)
A,B,C,D inputs
-60
dB
-40
dB
Reference bandwidth DACA
note 17
20
kHz
Reference bandwidth
note 17
100
kHz
DACB,C,D
Notes:
3. This is tested by design but is not production tested.
4. This is measured with no load (open circuit output),
Vref = 1.25V, range = x2.
5. Integral Nonlinearity (INL) is the maximum deviation of
the output from the line between zero and full scale (ex-
cluding the effects of zero code and full-scale er-
rors).
6. Differential Nonlinearity (DNL) is the difference be-
tween 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.
7. Zero-scale error is the deviation from zero voltage
output when the digital input code is zero.
8. Zero scale error temperature coefficient is given by:
ZCETC = (ZCE(Tmax) - ZCE(Tmin))/V REF x 106/
(Tmax - Tmin)
9. Full-Scale error is the deviation from the ideal full-scale
output (Vref - 1LSB) with an output load of 10kΩ.
10. Full-Scale Temperature Coefficient is given by:
FSETC = (FSE(Tmax) - FSE(Tmin))/VREF x 106/
(Tmax - Tmin)
11. Zero-code Error Rejection Ratio (ZCE-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 zero-code output voltage.
Wolfson Microelectronics
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