WM2604
Production Data
ELECTRICAL CHARACTERISTICS
Test Conditions:
R
L
= 10kΩ, C
L
= 100pF. AVDD = DVDD = 5V
±
10%, V
REF
= 2.048V and AVDD = DVDD = 3V
±
10%, V
REF
= 1.024V over
recommended operating free-air temperature range (unless noted otherwise).
PARAMETER
Static DAC Specifications
Resolution
Integral non-linearity
Differential non-linearity
Zero code error
Gain error
d.c. power supply rejection ratio
Zero code error temperature coefficient
Gain error temperature coefficient
DAC Output Specifications
Output voltage range
Output load regulation
Power Supplies
Active supply current
I
DD
No load, V
IH
= DVDD, V
IL
= 0V
AVDD = 5V,
V
REF
= 2.048V Slow
AVDD = 5V,
V
REF
= 2.048V Fast
AVDD = 3V,
V
REF
= 1.024V Slow
AVDD = 3V,
V
REF
= 1.024V Fast
See Note 8
Power down supply current
No load, all digital inputs
0V or DVDD
See Note 9
Dynamic DAC Specifications
Slew rate
DAC code 32 to 1023,
10% to 90%
Slow
Fast
See Note 10
Settling time
DAC code 32 to 1023
Slow
Fast
See Note 11
Glitch energy
Signal to noise ratio
SNR
Code 511 to 512
fs = 400ksps, f
OUT
= 1kHz,
BW = 20kHz
See Note 12
Signal to noise and distortion ratio
SNRD
fs = 400ksps, f
OUT
= 1kHz,
BW = 20kHz
See Note 12
Total harmonic distortion
THD
fs = 400ksps, f
OUT
= 1kHz,
BW = 20kHz
See Note 12
Spurious free dynamic range
SPFDR
fs = 400ksps, f
OUT
= 1kHz,
BW = 20kHz
See Note 12
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 June 1999
4
54
70
dB
-68
-54
dB
54
65
dB
60
10
68
nV-s
dB
12.0
4.0
µs
µs
0.5
2.5
1.0
4.0
V/µs
V/µs
0.01
10
µA
1.4
3.5
1.0
3.0
2.2
5.5
1.5
4.5
mA
2kΩ to 10kΩ load
See Note 7
0
0.1
AVDD - 0.1
0.25
V
%
INL
DNL
ZCE
GE
DC PSRR
See Note 1
See Note 2
See Note 3
See Note 4
See Note 5
See Note 6
See Note 6
10
bits
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
±
0.4
±
0.1
3
0.25
0.5
10
10
±
1
±
0.25
±
12
±
0.6
LSB
LSB
mV
% FSR
mV/V
ppm/°C
ppm/°C
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
