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WM2626CD 数据表(PDF) 3 Page - Wolfson Microelectronics plc

部件名 WM2626CD
功能描述  Low Power Dual 8-bit Serial Input DAC with Internal Reference
PDF  11 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM2626CD 数据表(HTML) 3 Page - Wolfson Microelectronics plc

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Production Data
WM2626
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 April 2001
3
ELECTRICAL CHARACTERISTICS
Test Conditions:
RL = 10k
Ω, 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
8bits
Integral non-linearity
INL
End point adjusted
See Note 1
±0.4
±1LSB
Differential non-linearity
DNL
See Note 2
±0.1
±0.5
LSB
Zero code error
ZCE
See Note 3
±24
mV
Gain error
GE
See Note 4
±0.6
% FSR
D.C. power supply rejection ratio
D.C. PSRR
See Note 5
65
dB
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
2k
Ω to 10kΩ load
See Note 7
0.25
% FS
Power Supplies
No load, DAC value = 128,
all digital inputs 0V or VDD
Fast
4.2
7
VDD=5V
Slow
2
3.6
Fast
3.7
6.3
Internal
Reference
VDD=3V
Slow
1.7
3.0
Fast
3.8
6.3
VDD=5V
Slow
1.7
3.0
Fast
3.4
5.7
Active supply current
External
Reference
VDD=3V
Slow
1.4
2.6
mA
Power down supply current
IDD
1
µA
Dynamic DAC Specifications
Slew rate
SR
RL = 10k
Ω, CL = 100pF
Slow
Fast
See Note 9
12
1.8
V/
µs
V/
µs
Settling time
ts
RL = 10k
Ω, CL = 100pF
Slow
Fast
See Note 10
2.8
0.8
5.5
2.4
µs
µs
Glitch energy
DIN = 0 to 1, fCLK = 100kHz,
NCS = VDD
5nV-s
Signal to noise ratio
SNR
53
57
dB
Signal to noise and distortion ratio
SINAD
47
48
dB
Total harmonic distortion
THD
-50
-48
dB
Spurious free dynamic range
SFDR
fs = 480kSPS,
fOUT = 1kHz,
RL = 10k
Ω, CL = 100pF
See Note 11
50
62
dB



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