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參數(shù)資料
| 型號： | WM2636CD |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 12-bit Serial Input Voltage Output DAC with Internal Reference |
| 中文描述： | 12位串行輸入電壓與內(nèi)部基準(zhǔn)輸出DAC |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 392K |
| 代理商： | WM2636CD |
WM2636
Production Data
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 July 1999
4
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
Reference Configured as Input
Reference input resistance
R
REFIN
10
M
Reference input capacitance
C
REFIN
55
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 2048
Slow
Fast
-65
dB
Reference input bandwidth
1.0
1.0
MHz
MHz
Reference configured as output
Low reference voltage
V
REFOUTL
1.003
1.024
1.045
V
High reference voltage
V
REFOUTH
VDD > 4.75V
2.027
2.048
2.069
V
Output source current
I
REFSRC
1
mA
Output sink current
I
REFSNK
-1
mA
Load Capacitance
100
pF
PSRR
-48
dB
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
Notes:
1.
Integral non-linearity
(INL) is the maximum deviation of the output from the line between zero and full scale (excluding the effects
of zero code and full scale errors).
Differential non-linearity
(DNL) is the difference between the measured and ideal 1LSB amplitude change of any adjacent two
codes. A guarantee of monotonicity means the output voltage changes in the same direction (or remains constant) as a change in
digital input code.
Zero code error
is the voltage output when the DAC input code is zero.
Gain error
is the deviation from the ideal full scale output excluding the effects of zero code error.
Power supply rejection ratio
is measured by varying VDD from 4.5V to 5.5V and measuring the proportion of this signal imposed
on the zero code error and the gain error.
Zero code error
and
Gain error
temperature coefficients are normalised to full scale voltage.
Output load regulation
is the difference between the output voltage at full scale with a 10k
load and 2k
load. It is expressed as
a percentage of the full scale output voltage with a 10k
load.
I
DD
is measured while continuously writing code 2048 to the DAC. For V
IH
< VDD - 0.7V and V
IL
> 0.7V supply current will increase.
Typical supply current
in power down mode is 10nA. Production test limits are wider for speed of test.
10.
Slew rate
results are for the lower value of the rising and falling edge slew rates
11.
Settling time
is the time taken for the signal to settle to within 0.5LSB of the final measured value for both rising and falling edges.
Limits are ensured by design and characterisation, but are not production tested.
12.
SNR, SNRD, THD
and
SPFDR
are measured on a synthesised sinewave at frequency f
OUT
generated with a sampling frequency fs
.
2.
3.
4.
5.
6.
7.
8.
9.
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| WM2636ID | 12-bit Serial Input Voltage Output DAC with Internal Reference |
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| WM2637ID | Dual 10-Bit Serial Input Voltage Output DAC with Internal Reference |
| WM2638 | Dual 12-Bit Serial Input Voltage Output DAC with Internal reference |
相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| WM2636ID | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:12-bit Serial Input Voltage Output DAC with Internal Reference |
| WM2637 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Dual 10-Bit Serial Input Voltage Output DAC with Internal Reference |
| WM2637CD | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Dual 10-Bit Serial Input Voltage Output DAC with Internal Reference |
| WM2637ID | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Dual 10-Bit Serial Input Voltage Output DAC with Internal Reference |
| WM2638 | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Dual 12-Bit Serial Input Voltage Output DAC with Internal reference |
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