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參數(shù)資料
| 型號(hào)： | WM2618CD |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | Dual 12-Bit Serial Input Voltage Output DAC |
| 中文描述： | 雙12位串行輸入電壓輸出DAC |
| 文件頁(yè)數(shù)： | 3/10頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | WM2618CD |
Production Data
WM2618
WOLFSON MICROELECTRONICS LTD
PD Rev 1.1 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
12
bits
Integral non-linearity
INL
See Note 1
±
1.9
±
0.5
3
±
4
±
1
±
12
±
0.6
LSB
Differential non-linearity
DNL
See Note 2
LSB
Zero code error
ZCE
See Note 3
mV
Gain error
GE
See Note 4
0.1
% FSR
D.c. power supply rejection ratio
DC PSRR
See Note 5
0.5
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 - 0.1
V
Output load regulation
2k
to 10k
load
See Note 7
0.1
0.3
%
Power Supplies
Active supply current
I
DD
No load, V
IH
= VDD, V
IL
= 0V
VDD = 5.5V, V
REF
= 2.048V Slow
VDD
= 5.5V, V
REF
= 2.048V Fast
See Note 8
No load,
all digital inputs 0V or VDD
0.6
1.6
1.0
2.5
mA
mA
Power down supply current
0.01
μ
A
Dynamic DAC Specifications
Slew rate
AC code 128 to 4095, 10%-90%
Slow
Fast
See Note 9
DAC code 128 to 4095
Slow
Fast
See Note 10
Code 2047 to 2048
0.3
2.4
0.5
3.0
V/
μ
s
V/
μ
s
Settling time
12.0
4.0
μ
s
μ
s
Glitch energy
10
nV-s
Reference
Reference input resistance
R
REFIN
10
M
Reference input capacitance
C
REFIN
5
pF
Reference feedthrough
V
REF
= 1VPP at 1kHz
+ 1.024V dc, DAC code 0
V
REF
= 0.2VPP + 1.024V dc
DAC code 2048
Slow
Fast
-60
dB
Reference input bandwidth
0.5
1.0
MHz
MHz
Digital Inputs
High level input current
I
IH
Input voltage = VDD
1
μ
A
Low level input current
I
IL
Input voltage = 0V
-1
μ
A
Input capacitance
C
I
8
pF
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