WM2639
Production Data
ELECTRICAL CHARACTERISTICS
Test Conditions:
RL = 10kW, CL = 100pF. VDD = 5V ± 10%, VREF = 2.048V and VDD = 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
±1.2
±0.3
3
±3
Differential non-linearity
Zero code error
LSB
±0.5
±20
±0.3
ZCE
mV
Gain error
GE
% 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
Output voltage range
DC PSRR
0.5
20
20
0
VDD - 0.4
0.3
V
Output load regulation
2kW to 10kW load
0.1
%
See Note 7
Power Supplies
Active supply current
IDD
No load, VIH = VDD, VIL = 0V
VDD = 5V, VREF = 2.048V,
Internal
Slow
1.3
2.3
1.6
2.8
mA
mA
Fast
VDD = 5V, VREF = 2.048V,
External
Slow
0.9
1.9
1.2
2.4
mA
mA
Fast
VDD = 3V, VREF = 1.024V,
Internal
Slow
1.2
2.1
1.5
2.6
mA
mA
Fast
VDD = 3V, VREF = 1.024V,
External
Slow
0.9
1.8
1.1
2.3
mA
mA
Fast
See Note 8
Power down supply current
No load,
0.01
1
mA
all inputs 0V or VDD
See Note 9
Dynamic DAC Specifications
Slew rate
DAC code 32-4095,
10%-90%
Slow
Fast
1.2
6.0
1.7
10
V/ms
V/ms
See Note 10
DAC code 32-4095
Slow
Settling time
3.5
1
ms
ms
Fast
See Note 11
Code 2047 to 2048
Glitch energy
5
nV-s
WOLFSON MICROELECTRONICS LTD
Production Data Rev 1.0 July 1999
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
