WM2614
Production Data Rev 1.0
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
12
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
±1.5
±0.4
3
±4
±1
Differential non-linearity
Zero code error
LSB
ZCE
mV
±12
±0.6
Gain error
GE
0.25
0.5
10
% FSR
mV/V
ppm/°C
ppm/°C
D.c. power supply rejection ratio
Zero code error temperature coefficient
Gain error temperature coefficient
DAC Output Specifications
d.c. PSRR
10
Output voltage range
Output load regulation
0
AVDD - 0.1
0.25
V
2kW to 10kW load
0.1
%
See Note 7
Power Supplies
Active supply current
IDD
No load, VIH = DVDD, VIL = 0V
AVDD = 5V, VREF = 2.048V Slow
AVDD = 5V, VREF = 2.048V Fast
AVDD = 3V, VREF = 1.024V Slow
mA
1.6
3.8
1.2
3.2
2.4
5.6
1.8
4.8
AVDD = 3V, VREF = 1.024V Fast
See Note 8
Power down supply current
No load,
0.01
10
mA
all digital inputs 0V or DVDD
See Note 9
Dynamic DAC Specifications
Slew rate
DAC code 128 to 4095, 10%-90%
Slow
Fast
0.5
2.5
1.0
4.0
V/ms
V/ms
See Note 10
DAC code 128 to 4095
Slow
Settling time
12.0
4.0
ms
ms
Fast
See Note 11
Code 2047 to 2048
Glitch energy
10
74
nV-s
dB
Signal to noise ratio
SNR
SNRD
THD
fs = 400ksps, fOUT = 1kHz,
BW = 20kHz,
66
54
See Note 12
Signal to noise and distortion ratio
Total harmonic distortion
fs = 400ksps, fOUT = 1kHz,
BW = 20kHz,
66
-68
70
dB
dB
dB
See Note 12
fs = 400ksps, fOUT = 1kHz,
BW = 20kHz,
-56
See Note 12
Spurious free dynamic range
SPFDR
fs = 400ksps, fOUT = 1kHz,
BW = 20kHz,
56
See Note 12
WOLFSON MICROELECTRONICS LTD
Production Data Rev 1.0 June 1999
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
