- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10465 > MCP3550T-50E/SN (Microchip Technology)IC ADC 22BIT 2.7V 1CH 8SOIC PDF資料下載
參數(shù)資料
| 型號： | MCP3550T-50E/SN |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 5/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 22BIT 2.7V 1CH 8SOIC |
| 產(chǎn)品培訓(xùn)模塊： | MCP3901 Analog Front End |
| 標(biāo)準(zhǔn)包裝： | 3,300 |
| 位數(shù)： | 22 |
| 采樣率（每秒）： | 12.5 |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 電壓電源： | 單電源 |
| 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(yīng)商設(shè)備封裝： | 8-SOICN |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
| 配用： | MCP355XDV-MS1-ND - BOARD DEV SENSOR APP MCP355X MCP355XDM-TAS-ND - BOARD DEMO TINY APP SNSR MCP355X |
第1頁第2頁第3頁第4頁當(dāng)前第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
2009 Microchip Technology Inc.
DS21950E-page 13
MCP3550/1/3
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
3.1
Voltage Reference (VREF)
The MCP3550/1/3 devices accept single-ended
reference voltages from 0.1V to VDD. Since the
converter output noise is dominated by thermal noise,
which is independent of the reference voltage, the
output noise is not significantly improved by
diminishing the reference voltage at the VREF input pin.
A reduced voltage reference will significantly improve
the INL performance (see Figure 2-4); the INL max
error is proportional to VREF2.
3.2
Analog Inputs (VIN+, VIN-)
The MCP3550/1/3 devices accept a fully differential
analog input voltage to be connected on the VIN+ and
VIN- input pins. The differential voltage that is
converted is defined by VIN = VIN+ – VIN-. The
differential voltage range specified for ensured
accuracy is from -VREF to +VREF. However, the
converter will still output valid and usable codes with
the inputs overranged by up to 12% (see Section 5.0
“Serial Interface”) at room temperature. This
overrange is clearly specified by two overload bits in
the output code.
The absolute voltage range on these input pins extends
from VSS – 0.3V to VDD + 0.3V. Any voltage above or
below this range will create leakage currents through
the Electrostatic Discharge (ESD) diodes. This current
will increase exponentially, degrading the accuracy and
noise performance of the device. The common mode of
the analog inputs should be chosen such that both the
differential analog input range and the absolute voltage
range on each pin are within the specified operating
range
defined
in
3.3
Supply Voltage (VDD, VSS)
VDD is the power supply pin for the analog and digital
circuitry within the MCP3550/1/3. This pin requires an
appropriate bypass capacitor of 0.1 F. The voltage on
this pin should be maintained in the 2.7V to 5.5V range
for specified operation. VSS is the ground pin and the
current return path for both analog and digital circuitry
of the MCP3550/1/3. If an analog ground plane is
available, it is recommended that this device be tied to
the analog ground plane of the Printed Circuit Board
(PCB).
3.4
Serial Clock (SCK)
SCK synchronizes data communication with the
device. The device operates in both SPI mode 1,1 and
SPI mode 0,0. Data is shifted out of the device on the
falling edge of SCK. Data is latched in on the rising
edge of SCK. During CS high times, the SCK pin can
idle either high or low.
3.5
Data Output (SDO/RDY)
SDO/RDY is the output data pin for the device. Once a
conversion is complete, this pin will go active-low,
acting as a ready flag. Subsequent falling clock edges
will then place the 24-bit data word (two overflow bits
and 22 bits of data, see Section 5.0 “Serial
Interface”) on the SPI bus through the SDO pin. Data
is clocked out on the falling edge of SCK.
MCP3550/1/3
Symbol
I/O/P
Description
MSOP, SOIC
1VREF
I
Reference Voltage Analog Input Pin
2VIN+
I
Non-inverting Analog Input Pin
3VIN-
I
Inverting Analog Input Pin
4VSS
P
Ground Pin
5
SCK
I
Serial Clock Digital Input Pin
6
SDO/RDY
O
Data/Ready Digital Output Pin
7CS
I
Chip Select Digital Input Pin
8VDD
P
Positive Supply Voltage Pin
Type Identification: I = Input; O = Output; P = Power
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCP3553T-E/SN | IC ADC 22BIT 2.7V 1CH SPI 8SOIC |
| MCP3551T-E/SN | IC ADC 22BIT 2.7V 1CH SPI 8SOIC |
| 17280-3SG-300 | CONN RCPT 3POS PNL MNT SKT |
| MCP3204T-BI/SL | IC ADC 12BIT 2.7V 4CH SPI 14SOIC |
| 17291-2SG-300 | CONN RCPT 2POS PNL MNT SKT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP3550T-60 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs |
| MCP3550T-60E/MS | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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 |
| MCP3550T-60-E/MS | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs |
| MCP3550T-60E/SN | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 22-bit 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 |
| MCP3550T-60-E/SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。