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參數(shù)資料
| 型號(hào)： | WM2623CD |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Low Power 8-bit Serial Input DAC |
| 中文描述： | 低功耗8位串行輸入DAC |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大小： | 86K |
| 代理商： | WM2623CD |
Production Data
WM2623
WOLFSON MICROELECTRONICS LTD
PD
Rev 1.0 October 2000
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
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
±
10
mV
Gain error
GE
See Note 4
±
0.6
% FSR
D.C. power supply rejection ratio
PSRR
See Note 5
í
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 - 0.1
V
Output load regulation
2k
to 10k
load
See Note 7
No load, DAC value = 128,
all digital inputs 0V or VDD
VDD = 5V, V
REF
= 2.048V
Slow Mode
VDD = 5V, V
REF
= 2.048V
Fast Mode
VDD = 3V, V
REF
= 1.024V,
Slow Mode
VDD = 3V, V
REF
= 1.024V,
Fast Mode (See Note 8)
0.1
0.25
% FS
Power Supplies
0.4
0.6
mA
0.9
1.35
mA
0.3
0.45
mA
Active supply current
0.7
1.1
mA
Power down supply current
I
DD
1
μ
A
Dynamic DAC Specifications
Slew rate
SR
DAC output 10%-90%
Slow
Fast
See Note 9
DAC output 10%-90%
Slow
Fast
See Note 10
DAC Code 127 to 128
0.9
3.6
V/
μ
s
V/
μ
s
Settling time
t
s
9
3
20
5.5
μ
s
μ
s
Glitch energy
10
nV-s
Signal to noise ratio
SNR
57
dB
Signal to noise and distortion ratio
SNRD
49
dB
Total harmonic distortion
THD
í
dB
Spurious free dynamic range
SPFDR
f
s
= 400kSPS,
f
OUT
= 1.1kHz,
BW = 20kHz
See Note 11
60
dB
Reference
Reference input resistance
R
REFIN
10
M
Reference input capacitance
C
REFIN
5
pF
Reference feedthrough
V
REF
= 1V
PP
at 1kHz
+ 1.024V dc, DAC code 0
V
REF
= 0.2V
PP
+ 1.024V dc
DAC code 128
Slow
Fast
-75
dB
Reference input bandwidth
0.525
1.3
MHz
MHz
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