WM2625 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
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WM2625 Datasheet PDF : 9 Pages
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Production Data
WM2625
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
TYP
MAX
UNIT
Static DAC Specifications
Resolution
8
bits
Integral non-linearity
INL
See Note 1
±0.3
±0.5
LSB
Differential non-linearity
DNL
See Note 2
±0.07
±0.2
LSB
Zero code error
ZCE
See Note 3
±12
mV
Gain error
GE
See Note 4
±0.5 % FSR
D.C. power supply rejection ratio
D.C. PSRR
See Note 5
-65
mV/V
Zero code error temperature coefficient
See Note 6
10
ppm/°C
Gain error temperature coefficient
See Note 6
10
ppm/°C
DAC Output Specifications
Output voltage range
0
VDD - 0.4 V
Output load regulation
Power Supplies
Active supply current
2kΩ to 10kΩ load
See Note 7
No load, DAC value = 128,
all digital inputs 0V or VDD
IDD
Slow Mode
Fast Mode
0.29
% FS
0.8
1
mA
1.8
2.3
mA
Power down supply current
See Note 8
1
3
µA
Dynamic DAC Specifications
Slew rate
Full-scale settling time
Glitch energy
Signal to noise ratio
Signal to noise and distortion ratio
Total harmonic distortion
SR
DAC output 10%-90%
Slow
0.5
Fast
3
See Note 9
ts
DAC output 10%-90%
Slow
3
Fast
1
See Note 10
DIN = 0 to 1, fCLK = 100kHz,
5
NCS = VDD
SNR
SINAD
THD
fs = 102kSPS,
fOUT = 1kHz,
See Note 11
52
54
48
49
-50
V/µs
V/µs
10
µs
3
µs
nV-s
dB
dB
-48
dB
Spurious free dynamic range
SFDR
48
50
dB
Reference
Reference input resistance
RREFIN
10
MΩ
Reference input capacitance
CREFIN
5
pF
Reference feedthrough
Reference input bandwidth
Digital Inputs
VREF = 1VPP at 1kHz
+ 1.024V dc, DAC code 0
VREF = 0.2VPP + 1.024V dc
Slow
Fast
-80
0.525
1.3
dB
MHz
MHz
High level input current
Low level input current
IIH
Input voltage = VDD
-1
IIL
Input voltage = 0V
-1
1
µA
1
µA
Input capacitance
CI
8
pF
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 April 2001
3
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