WM2639 데이터 시트보기 (PDF) - Wolfson Microelectronics plc
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WM2639 Datasheet PDF : 10 Pages
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WM2639
Production Data
ELECTRICAL CHARACTERISTICS
Test Conditions:
RL = 10kΩ, 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
Static DAC Specifications
Resolution
12
Integral non-linearity
INL
See Note 1
Differential non-linearity
DNL
See Note 2
Zero code error
ZCE
See Note 3
Gain error
GE
See Note 4
d.c. power supply rejection ratio
DC PSRR
See Note 5
Zero code error temperature coefficient
See Note 6
Gain error temperature coefficient
See Note 6
DAC Output Specifications
Output voltage range
0
Output load regulation
Power Supplies
2kΩ to 10kΩ load
See Note 7
Active supply current
Power down supply current
Dynamic DAC Specifications
IDD
No load, VIH = VDD, VIL = 0V
VDD = 5V, VREF = 2.048V,
Internal
Slow
Fast
VDD = 5V, VREF = 2.048V,
External
Slow
Fast
VDD = 3V, VREF = 1.024V,
Internal
Slow
Fast
VDD = 3V, VREF = 1.024V,
External
Slow
Fast
See Note 8
No load,
all inputs 0V or VDD
See Note 9
Slew rate
Settling time
Glitch energy
DAC code 32-4095,
10%-90%
Slow
1.2
Fast
6.0
See Note 10
DAC code 32-4095
Slow
Fast
See Note 11
Code 2047 to 2048
TYP
MAX
UNIT
±1.2
±0.3
3
0.5
20
20
±3
±0.5
±20
±0.3
bits
LSB
LSB
mV
% FSR
mV/V
ppm/°C
ppm/°C
VDD - 0.4
V
0.1
0.3
%
1.3
1.6
mA
2.3
2.8
mA
0.9
1.2
mA
1.9
2.4
mA
1.2
1.5
mA
2.1
2.6
mA
0.9
1.1
mA
1.8
2.3
mA
0.01
1
µA
1.7
V/µs
10
V/µs
3.5
µs
1
µs
5
nV-s
WOLFSON MICROELECTRONICS LTD
Production Data Rev 1.0 July 1999
4
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