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參數(shù)資料
| 型號(hào)： | ADC12138 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 串行ADC |
| 英文描述： | Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold |
| 中文描述： | 自校準(zhǔn)12位帶符號(hào)串行I /辦公自動(dòng)化/ D轉(zhuǎn)換器MUX和采樣/保持 |
| 文件頁(yè)數(shù)： | 6/41頁(yè) |
| 文件大?。?/td> | 1085K |
| 代理商： | ADC12138 |
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Converter Electrical Characteristics
The following specifications apply for (V
+
= V
+ = V
+ = +5V, V
+ = +4.096V, and fully differential input with fixed 2.048V
common-mode voltage) or (V
+
= V
+ = V
+ = 3.3V, V
+ = +2.5V and fully-differential input with fixed 1.250V
common-mode voltage), V
= 0V, 12-bit + sign conversion mode, source impedance for analog inputs, V
and V
REF
+
≤
25
, f
CK
= f
SK
= 5 MHz, and 10 (t
CK
) acquisition time unless otherwise specified.
Boldface limits apply for T
A
= T
J
=
T
MIN
to T
MAX
;
A
= T
J
= 25C. (Notes 7, 8, 9) (Continued)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
(Limits)
STATIC CONVERTER CHARACTERISTICS (Continued)
Multiplexer Channel to Channel
Matching
Power Supply Sensitivity
±
0.05
LSB
V
+
= +5V
±
10%
V
REF
= +4.096V
Offset Error
±
0.5
±
0.5
±
0.5
±
0.5
±
0.5
LSB
LSB
LSB
LSB
LSB
+ Full-Scale Error
Full-Scale Error
+ Integral Linearity Error
Integral Linearity Error
UNIPOLAR DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
Signal-to-Noise Plus
Distortion Ratio
f
IN
= 1 kHz, V
IN
= 5 V
PP
, V
REF+
= 5.0V
f
IN
= 20 kHz, V
IN
= 5 V
PP
, V
REF+
= 5.0V
f
IN
= 40 kHz, V
IN
= 5 V
PP
, V
REF
+ = 5.0V
V
IN
= 5 V
PP
, where S/(N+D) drops 3 dB
69.4
68.3
65.7
31
dB
dB
dB
kHz
3 dB Full Power Bandwidth
DIFFERENTIAL DYNAMIC CONVERTER CHARACTERISTICS
S/(N+D)
Signal-to-Noise Plus
Distortion Ratio
f
IN
= 1 kHz, V
IN
=
±
5V, V
REF+
= 5.0V
f
IN
= 20 kHz, V
IN
=
±
5V, V
REF+
= 5.0V
f
IN
= 40 kHz, V
IN
=
±
5V, V
REF+
= 5.0V
V
IN
=
±
5V, where S/(N+D) drops 3 dB
77.0
73.9
67.0
40
dB
dB
dB
kHz
3 dB Full Power Bandwidth
Electrical Characteristics
The following specifications apply for (V
+
= V
+ = V
+ = +5V, V
+ = +4.096V, and fully differential input with fixed 2.048V
common-mode voltage) or (V
+
= V
+ = V
+ = +3.3V, V
+ = 2.5V and fully-differential input with fixed 1.250V
common-mode voltage), V
= 0V, 12-bit + sign conversion mode, source impedance for analog inputs, V
and V
REF
+
≤
25
, f
CK
= f
SK
= 5 MHz, and 10 (t
CK
) acquisition time unless otherwise specified.
Boldface limits apply for T
A
= T
J
=
T
MIN
to T
MAX
;
A
= T
J
= 25C. (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
(Limits)
REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS
C
REF
Reference Input Capacitance
C
A/D
A/DIN1 and A/DIN2 Analog Input
Capacitance
A/DIN1 and A/DIN2 Analog Input
Leakage Current
CH0–CH7 and COM Input Voltage
85
75
pF
pF
V
IN
= +5.0V or
V
IN
= 0V
±
0.1
μA
GND 0.05
V
A
+ + 0.05
10
V
C
CH
CH0–CH7 and COM Input
Capacitance
MUX Output Capacitance
Off Channel Leakage (Note 16)
CH0–CH7 and COM Pins
pF
C
MUXOUT
20
pF
μA
On Channel = 5V and
Off Channel = 0V
On Channel = 0V and
Off Channel = 5V
0.01
0.01
μA
A
www.national.com
6
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參數(shù)描述 |
|---|---|
| ADC12138CIMSA | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC12138CIMSA/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC SELF-CALIBR 12B PLUS SIGN SERIAL I/O ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC12138CIMSANOPB | 制造商:TI 功能描述:Pb Free |
| ADC12138CIMSAX | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC12138CIMSAX/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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