參數(shù)資料
型號： ADC12041
廠商： National Semiconductor Corporation
英文描述： 12-Bit Plus Sign 216 kHz Sampling Analog-to-Digital Converter(12位216 kHz采樣A/D轉換器)
中文描述： 12位帶符號216 kHz的采樣模擬到數(shù)字轉換器（12位216 kHz的采樣的A / D轉換器）
文件頁數(shù)： 5/28頁
文件大?。?/td> 591K
代理商： ADC12041
Power Supply Characteristics
(Continued)
The following specifications apply to the ADC12041 for V
+ = V
D
+ = 5V, V
REF
+ = 4.096V, V
= 0.0V, 12-bit + sign conver-
sion mode, f
= 12.0 MHz, R
= 25
, source impedance for V
+ and V
1
, fully differential input with fixed 2.048V
common-mode voltage, and minimum acquisition time, unless otherwise specified.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Unit
(Limit)
I
A
+
V
A
+ Analog Supply Current
Start Command (Performing a conversion)
with SYNC configured as an input and driven
with a 214 kHz signal. Bus width set to 13.
f
CLK
= 12.0 MHz, Reset Mode
f
CLK
= 12.0 MHz, Conversion
Standby Mode
f
CLK
= Stopped
f
CLK
= 12.0 MHz
2.3
2.3
mA
4.0
mA (max)
I
ST
Standby Supply Current
(I
D
+ + I
A
+)
5
15
120
μA (max)
μA (max)
100
Analog Input Characteristics
The following specifications apply to the ADC12041 for V
+ = V
D
+ = 5V, V
REF
+ = 4.096V, V
= 0.0V, 12-Bit + sign conver-
sion mode, f
= 12.0 MHz, R
= 25
, source impedance for V
+ and V
+
≤
1
, fully differential input with fixed 2.048V
common-mode voltage, and minimum acquisition time, unless otherwise specified.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
; all other limits T
A
= T
J
= 25C
Symbol
Parameter
Conditions
Typical
(Note 10)
±
0.05
Limits
(Note 11)
2.0
Unit
(Limit)
μA (max)
I
IN
V
IN
+ and V
IN
Input Leakage Current
V
IN
+ = 5V
V
IN
= 0V
V
IN
= 2.5V
Refer to section titled INPUT CURRENT.
R
ON
ADC Input On Resistance
1000
CV
IN
ADC Input Capacitance
10
pF
Reference Inputs
The following specifications apply to the ADC12041 for V
+ = V
+ = 5V, V
+ = 4.096V, V
= 0.0V, 12-bit + sign con-
version mode, f
= 12.0 MHz, R
= 25
, source impedance for V
+ and V
≤
1
, fully differential input with fixed
2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Unit
(Limit)
I
REF
Reference Input Current
V
REF
+ 4.096V, V
REF
= 0V
Analog Input Signal: 1 kHz
(Note 20) 80 kHz
145
136
85
μA
μA
pF
C
REF
Reference Input Capacitance
Digital Logic Input/Output Characteristics
The following specifications apply to the ADC12041 for V
+ = V
+ = 5V, V
+ = 4.096V, V
= 0.0V, 12-bit + sign con-
version mode, f
= 12.0 MHz, R
= 25
, source impedance for V
+ and V
≤
1
, fully differential input with fixed
2.048V common-mode voltage, and minimum acquisition time, unless otherwise specified.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
2.2
0.8
2.0
2.0
Unit
(Limit)
V (min)
V (max)
μA (max)
μA (max)
V
IH
V
IL
I
IH
I
IL
V
OH
Logic High Input Voltage
Logic Low Input Voltage
Logic High Input Current
Logic Low Input Current
Logic High Output Voltage
V
A
+ = V
D
+ = 5.5V
V
A
+ = V
D
+ = 4.5V
V
IN
= 5V
V
IN
= 0V
V
A
+ = V
D
+ = 4.5V
I
OUT
= 1.6 mA
0.035
0.035
2.4
2.4
V (min)
A
www.national.com
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