- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1953 > MCP4011T-503E/SN (Microchip Technology)IC DGTL POT 50K 1CH 8SOIC PDF資料下載
參數(shù)資料
| 型號： | MCP4011T-503E/SN |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 40/54頁 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 50K 1CH 8SOIC |
| 標準包裝： | 3,300 |
| 接片： | 64 |
| 電阻（歐姆）： | 50k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標準值 150 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 2 線串行（芯片選擇，增/減） |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設(shè)備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
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頁當前第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁
2006 Microchip Technology Inc.
DS21978C-page 45
MCP4011/2/3/4
8.2
Operational Amplifier
Applications
Figure 8-3, Figure 8-4 and Figure 8-5 illustrate typical
amplifier circuits that could replace fixed resistors with
the MCP4011/2/3/4 to achieve digitally-adjustable
analog solutions.
Figure 8-4 shows a circuit that allows a non-inverting
amplifier to have its’ offset and gain to be independently
trimmed. The MCP4011 is used along with resistors R1
and R2 to set the offset voltage. The sum of R1 + R2
resistance should be significantly greater (> 100 times)
the resistance value of the MCP4011. This allows each
increment or decrement in the MCP4011 to be a fine
adjustment of the offset voltage. The input voltage of
the op amp (V
IN) should be centered at the op amps V
w
voltage. The gain is adjusted by the MCP4012. If the
resistance value of the MCP4012 is small compared to
the resistance value of R3, then this is a fine adjustment
of the gain. If the resistance value of the MCP4012 is
equal (or large) compared to the resistance value of R3,
then this is a course adjustment of the gain. In general,
trim the course adjustments first and then trim the fine
adjustments.
FIGURE 8-3:
Trimming Offset and Gain in
an Inverting Amplifier.
FIGURE 8-4:
Trimming Offset and Gain in
a Non-Inverting Amplifier.
FIGURE 8-5:
Programmable Filter.
Op Amp
VIN
VOUT
B
A
W
+
–
MCP4011
R1
R2
B
A
VDD
W
R3
R4
MCP401
1
MCP6001
Op Amp
VIN
VOUT
–
+
R1
R2
B
A
VDD
W
R3
MCP6291
MCP401
1
MCP4012
AW
V
W
V
DD
Op Amp
VIN
VOUT
B
A
W
+
–
MCP4011
R1
R2
B
A
VDD
W
MCP4011
R3
R4
fc
1
2
π R
Eq C
-----------------------------
=
Pot1
Pot2
REq
R1 RAB RWB
–
+
()
R2 RWB
+
() R
w
+
||
=
Thevenin
Equivalent
MCP6021
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP4019T-103E/LT | IC DGTL POT 10K 128TAPS SC70-5 |
| MCP4021T-502E/MC | IC DGTL POT 5K 1CH 8DFN |
| MCP40D18T-503AE/LT | IC POT 7BIT 50K I2C SC-70-6 |
| MCP42100T-E/ST | IC POT DGTL 100K 2CH SPI 14TSSOP |
| MCP4251-503E/P | IC DGTL POT 50K 2CH 14DIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP4012 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
| MCP4012-103E/CH | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
| MCP4012-103E/MC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
| MCP4012-103E/MS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
| MCP4012-103E/OT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost 64-Step Volatile Digital POT |
發(fā)布緊急采購，3分鐘左右您將得到回復。