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參數(shù)資料
| 型號(hào)： | WM2626 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Low Power Dual 8-bit Serial Input DAC with Internal Reference |
| 中文描述： | 低功耗雙8位串行輸入DAC的內(nèi)部參考 |
| 文件頁(yè)數(shù)： | 3/11頁(yè) |
| 文件大小： | 109K |
| 代理商： | WM2626 |
Production Data
WM2626
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 April 2001
3
ELECTRICAL CHARACTERISTICS
Test Conditions:
R
L
= 10k
, C
L
= 100pF. VDD
= 5V ±10%, V
REF
= 2.048V and VDD
= 3V ±10%, V
REF
= 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
End point adjusted
See Note 1
See Note 2
±0.4
±
1
LSB
Differential non-linearity
DNL
±
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
to 10k
load
See Note 7
No load, DAC value = 128,
all digital inputs 0V or VDD
0.25
% FS
Power Supplies
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
I
DD
1
μ
A
Dynamic DAC Specifications
Slew rate
SR
R
L
= 10k
, C
L
= 100pF
Slow
Fast
See Note 9
R
L
= 10k
, C
L
= 100pF
Slow
Fast
See Note 10
DIN = 0 to 1, f
CLK
= 100kHz,
NCS = VDD
12
1.8
V/
μ
s
V/
μ
s
Settling time
t
s
2.8
0.8
5.5
2.4
μ
s
μ
s
Glitch energy
5
nV-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
f
s
= 480kSPS,
f
OUT
= 1kHz,
R
L
= 10k
, C
L
= 100pF
See Note 11
50
62
dB
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