- 您现在的位置：买卖IC网 > PDF目录17108 > MCP4728EV (Microchip Technology)BOARD EVAL 12BIT 4CH DAC MCP4728 PDF资料下载
参数资料
| 型号： | MCP4728EV |
| 厂商： | Microchip Technology |
| 文件页数： | 14/33页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL 12BIT 4CH DAC MCP4728 |
| 视频文件： | MCP4728 Evaluation Board Demo |
| 标准包装： | 1 |
| DAC 的数量： | 4 |
| 位数： | 12 |
| 数据接口： | I²C |
| 设置时间： | 6µs |
| DAC 型： | 电压 |
| 工作温度： | -40°C ~ 125°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | MCP4728 |
| 产品目录页面： | 673 (CN2011-ZH PDF) |
| 相关产品： | MCP4728T-E/UN-ND - IC DAC 12BIT W/I2C 10-MSOP MCP4728-E/UN-ND - IC DAC 12BIT W/I2C 10-MSOP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
2010 Microchip Technology Inc.
DS22187E-page 21
MCP4728
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
3.1
Supply Voltage Pins (VDD, VSS)
VDD is the power supply pin for the device. The voltage
at the VDD pin is used as a power supply input as well
as a DAC external reference. The power supply at the
VDD pin should be as clean as possible for a good DAC
performance.
It is recommended to use an appropriate bypass
capacitor of about 0.1 F (ceramic) to ground. An
additional 10 F capacitor (tantalum) in parallel is also
recommended to further attenuate high-frequency
noise present in application boards. The supply voltage
(VDD) must be maintained in the 2.7V to 5.5V range for
specified operation.
VSS is the ground pin and the current return path of the
device. The user must connect the VSS pin to a ground
plane through a low-impedance connection. If an
analog ground path is available in the application
printed circuit board (PCB), it is highly recommended
that the VSS pin be tied to the analog ground path, or
isolated within an analog ground plane of the circuit
board.
3.2
Serial Clock Pin (SCL)
SCL is the serial clock pin of the I2C interface. The
MCP4728 device acts only as a slave and the SCL pin
accepts only external input serial clocks. The input data
from the Master device is shifted into the SDA pin on
the rising edges of the SCL clock, and output from the
MCP4728 occurs at the falling edges of the SCL clock.
The SCL pin is an open-drain N-channel driver.
Therefore, it needs a pull-up resistor from the VDD line
to the SCL pin.
Refer
to
Interface communication.
Typical range of the pull-up resistor value for SCL and
SDA is from 5 k
Ω to 10 kΩ for Standard (100 kHz) and
Fast (400 kHz) modes, and less than 1 k
Ω for High
Speed mode (3.4 MHz).
TABLE 3-1:
PIN FUNCTION TABLE
Pin No.
Name
Pin Type
Function
1
VDD
P
Supply Voltage
2SCL
OI
I2C Serial Clock Input
3
SDA
OI/OO
I2C Serial Data Input and Output
4LDAC
ST
This pin is used for two purposes:
(a) Synchronization Input. It is used to transfer the contents of the DAC input
registers to the output registers (VOUT).
(b) Select the device for reading and writing I2C address bits.
5
RDY/BSY
OO
This pin is a status indicator of EEPROM programming activity. An external pull-up
resistor (about 100 k
Ω) is needed from RDY/BSY pin to V
DD line. (Note 1)
6VOUT A
AO
Buffered analog voltage output of channel A. The output amplifier has rail-to-rail
operation.
7VOUT B
AO
Buffered analog voltage output of channel B. The output amplifier has rail-to-rail
operation.
8VOUT C
AO
Buffered analog voltage output of channel C. The output amplifier has rail-to-rail
operation.
9VOUT D
AO
Buffered analog voltage output of channel D. The output amplifier has rail-to-rail
operation.
10
VSS
P
Ground reference.
Legend: P = Power, OI = Open-Drain Input, OO = Open-Drain Output, ST = Schmitt Trigger Input Buffer,
AO = Analog Output
Note 1:
This pin needs an external pull-up resistor from VDD line. Leave this pin float if it is not used.
2:
This pin can be driven by MCU.
相关PDF资料 |
PDF描述 |
|---|---|
| EMM08DRXI | CONN EDGECARD 16POS DIP .156 SLD |
| 9337110001 | HEAT SHRINK SLEEVE |
| 8420630001 | HEAT SHRINK SLEEVE |
| REF192GSZ-REEL | IC VREF SERIES PREC 2.5V 8-SOIC |
| SC43B-2R2 | INDUCTOR SMD 2.2UH 1.75A 7.96MHZ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP4728T-E/UN | 功能描述:数模转换器- DAC Quad 12-bit NV DAC with I2C interface RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MCP4729-E/SS | 功能描述:数模转换器- DAC Octal 12-bit NV DAC with I2C interface RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MCP47A1T-A0E/LT | 功能描述:数模转换器- DAC 6-Bit Volatile DAC with Command Code RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MCP47A1T-A1E/LT | 功能描述:数模转换器- DAC 6-Bit Volatile DAC with Command Code RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MCP47DA1T-A0E/OT | 功能描述:数模转换器- DAC 6-bit windowed DAC voltage margining RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。