- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385574 > MCP3304 (Microchip Technology Inc.) 13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface PDF資料下載
參數(shù)資料
| 型號： | MCP3304 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface |
| 中文描述： | 13位差分輸入，低功耗的A / D轉換器具有SPI串行接口 |
| 文件頁數(shù)： | 19/40頁 |
| 文件大?。?/td> | 666K |
| 代理商： | MCP3304 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
2002 Microchip Technology Inc.
DS21697B-page 19
MCP3302/04
FIGURE 6-5:
for gain and also buffers the input from any high
impedance sources.
Adding an amplifier allows
This circuit shows that some headroom will be lost due
to the amplifier output not being able to swing all the
way to the rail. An example would be for an output
swing of 0V to 5V. This limitation can be overcome by
supplying a V
REF
that is slightly less than the common
mode voltage. Using a 2.048V reference for the A/D
converter while biasing the input signal at 2.5V solves
the problem. This circuit is shown in Figure 6-5.
FIGURE 6-6:
amplifier output swing limitation.
Circuit solution to overcome
6.4
Common Mode Input Range
The
common mode input range
has no restriction and is
equal to the absolute input voltage range: V
SS
-0.3V to
V
DD
+ 0.3V. However, for a given V
REF
, the common
mode voltage has a limited swing, if the entire range of
the A/D converter is to be used. Figure 6-7 and
Figure 6-8 show the relationship between V
REF
and the
common mode voltage swing. A smaller V
REF
allows for
wider flexibility in a common mode voltage. V
REF
levels,
down to 400 mv, exhibit less than 0.1 LSB change in
DNL and INL. For characterization graphs that show
this performance relationship, see Figure 2-9 and
Figure 2-12.
FIGURE 6-7:
of Full Differential Input Signal versus V
REF
.
Common Mode Input Range
FIGURE 6-8:
versus V
REF
for Pseudo Differential Input.
Common Mode Input Range
V
DD
= 5V
-
+
0.1
μ
F
MCP6021
IN+
IN-
V
REF
MCP330X
1
μ
F
MCP1525
V
IN
V
OUT
1 k
10 k
1 M
1
μ
F
V
IN
0.1
μ
F
1 M
2.048V
V
DD
= 5V
-
+
0.1 μF
MCP606
IN+
IN-
V
REF
MCP330X
1 μF
MCP1525
V
IN
V
OUT
0.1 μF
1 k
10 k
1 μF
V
IN
10 k
V
REF
(V)
0.25
V
DD
= 5V
5.0
1.0
2.5
4.0
-1
0
1
2
3
4
5
4.05V
2.8V
2.3V
0.95V
C
V
REF
(V)
0.25
V
DD
= 5V
2.5
0.5
1.25
2.0
-1
0
1
2
3
4
5
4.05V
2.8V
2.3V
0.95V
C
相關PDF資料 |
PDF描述 |
|---|---|
| MCP6044 | 600 nA, Rail-to-Rail Input/Output Op Amps |
| MCP6041 | 600 nA, Rail-to-Rail Input/Output Op Amps |
| MCP6041T | 600 nA, Rail-to-Rail Input/Output Op Amps |
| MCP6042 | 600 nA, Rail-to-Rail Input/Output Op Amps |
| MCP6042T | 600 nA, Rail-to-Rail Input/Output Op Amps |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCP3304-BI/P | 功能描述:模數(shù)轉換器 - ADC 13-bit Diff In 4 Chl RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MCP3304-BI/SL | 功能描述:模數(shù)轉換器 - ADC 13-bit Diff In 4 Chl RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MCP3304-BI/ST | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:13-Bit Differential Input, Low Power A/D Converter with SPI Serial Interface |
| MCP3304-CI/P | 功能描述:模數(shù)轉換器 - ADC 13-bit Diff In 4 Chl RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MCP3304-CI/SL | 功能描述:模數(shù)轉換器 - ADC 13-bit Diff In 4 Chl RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。