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