- 您现在的位置：买卖IC网 > Sheet目录1230 > MCP6S2XEV (Microchip Technology)BOARD EVALUATION FOR MCP6S2X
MCP6S2X Evaluation Board (Rev. 4) User’s Guide
1.3.2
Application Procedure - Program Mode
1. Place the V DD SELECT jumper (JP2) at the top (away from J1). The MPLAB
ICD 2 will provide 5V to the PGAs and to the microcontroller. Disconnect any
external power supply from J1.
Note:
The ICSP? connector can only be used to program the PIC16F676. In
order to debug the firmware, use the MPLAB ICD 2 header. Refer to the
MPLAB ICD 2 Header Installation Information (DS51292) for more
information.
2. Configure the MPLAB ICD 2 to provide power to the evaluation board through
the ICSP connector. This is accomplished by changing the MPLAB ICD 2
configuration in MPLAB IDE. The MPLAB ICD 2 needs to be powered by an
external power source.
3. Connect the MPLAB ICD 2 to the ICSP connector and update the PIC16F676
firmware from a PC using MPLAB ICD 2.
Note:
Do not change either of the manual push button switches ( MCLR and
READ ) while debugging the firmware. The results of this action would be
unpredictable, and may cause damage due to conflicting voltage sources.
1.4
HOW IT WORKS
1.4.1
PGA Functions
The PGA has an internal precision operational amplifier in a non-inverting configura-
tion. The gain of this operational amplifier is set using resistive ladders in the feedback
loop. The resistor ratio is set using analog switches that are configured according to the
instructions stored in the memory registers.
The MCP6S21/2/6/8 family of PGAs provide various input channel options: one, two,
six or eight channel inputs, respectively. The non-inverting input of the internal preci-
sion operational amplifier is directly connected to the input channels through a multi-
plexer. The multiplexer is also configured according to the command stored in the
memory registers. Figure 1-2 shows a block diagram of the MCP6S26 with six input
channels. For the single-channel MCP6S21, the non-inverting input is directly con-
nected to the input pin without a multiplexer.
V DD
CH0
CH1
CH2
CH3
CH4
MUX
V OUT
CH5
Gain
Switches
8
R F
CS
SI
SO
SCK
SPI?
Logic
POR
V SS
MCP6S26
R G
V REF
FIGURE 1-2:
The six-channel MCP6S26 PGA Block Diagram. The
single-channel MCP6S21 does not have an input multiplexer.
DS51327B-page 10
? 2004 Microchip Technology Inc.
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
MCP6XXXDM-FLTR
KIT DEMO BOARD ACTIVE FILTER
MCP6XXXEV-AMP1
BOARD AMPLIFIER EVAL 1 MCP6XXX
MCP6XXXEV-AMP2
BOARD AMPLIFIER EVAL 2 MCP6XXX
MCP6XXXEV-AMP3
BOARD AMPLIFIER EVAL 3 MCP6XXX
MCP6XXXEV-AMP4
BOARD AMPLIFIER EVAL 4 MCP6XXX
MCP73113EV-1SOVP
BOARD EVAL BATT CHARGER MCP73113
MCP7381XEV
BOARD EVAL FOR MCP7381
MCP7382XEV
KIT EVALUATION FOR MCP7382X
相关代理商/技术参数
MCP6S91-E/MS
功能描述:特殊用途放大器 1-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S91-E/P
功能描述:特殊用途放大器 1-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S91-E/SN
功能描述:特殊用途放大器 1-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S91T-E/MS
功能描述:特殊用途放大器 1-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S91T-E/SN
功能描述:特殊用途放大器 1-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S92-E/MS
功能描述:特殊用途放大器 2-Ch. 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S92-E/P
功能描述:特殊用途放大器 2-C 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MCP6S92-E/SN
功能描述:特殊用途放大器 2-C 10 MHz SPI PGA RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel