参数资料
型号: MCP6S2XEV
厂商: Microchip Technology
文件页数: 13/36页
文件大小: 0K
描述: BOARD EVALUATION FOR MCP6S2X
标准包装: 1
每 IC 通道数: 1 - 单,6 - 六
放大器类型: 可编程增益
输出类型: 单端,满摆幅
转换速率: 22 V/µs
-3db带宽: 12MHz
电流 - 输出 / 通道: 30mA
工作温度: -40°C ~ 85°C
电流供应(主 IC): 1mA
电压 - 电源,单路/双路(±): 2.5 V ~ 5.5 V
板类型: 完全填充
已供物品:
已用 IC / 零件: MCP6S21,MCP6S26
1.3
HOW IT IS USED
1.3.1
Application Procedure - Stand-Alone Mode
1. Apply a 2.5V to 5.5V supply voltage to the V DD and ground (GND) terminals of
J1. Place the V DD SELECT jumper (JP2) at the bottom (nearest J1).
Note:
If jumper JP2 is incorrectly placed, there may be a conflict between power
supplies.
For additional information on powering-up the MCP6S2X Evaluation Board (Rev.
4), refer to Section 1.4.2 “Applying Power” . During power-up, the MCP6S2X
PGA's default settings are Channel 0 (CH0) and gain = 1 V/V.
Note:
Do NOT use the ICSP connector while in this mode (disconnect the cable).
The results may be unpredictable and damage might occur due to
conflicting voltage sources.
2. Connect a voltage-measuring device (such as an oscilloscope) to V OUT_1 for the
MCP6S26 and/or V OUT_2 for the MCP6S21.
3. Select the desired reference voltage using JP1. If the adjustable reference
voltage is selected, adjust this voltage using the potentiometer (ADJ_V REF ). A
test point is available to measure the reference voltage.
Refer to Section 1.4.5 “Reference Voltage” for additional information.
Note:
There are soldering pads available across each input terminal for termina-
tion resistors (R 4 and R 5 ). If these resistors (e.g., 50 ? ) are needed for your
application, solder them across the pads.
4. Apply the input signal source at V IN_0 and/or V IN_1 . V IN_0 is connected to
Channel 0 and V IN_1 is connected to Channel 1 of the MCP6S26 (refer to
Section 1.4.4 “Analog Interface” ). Make sure that the input signal range is at
the proper level to avoid railing the amplifier output when the signal is gained.
Refer to Section 1.4.5 “Reference Voltage” for additional information.
5. Refer to the Table 1-1 and select the desired gain, channel or shutdown using the
on-board DIP switch. Press and release the READ push button switch to pro-
gram the PGA and notice the change in the output voltage. Refer to
Section 1.4.6 “Programming The PGA” for further explanation.
TABLE 1-1:
DIP SWITCH CONFIGURATION TABLE
? 2004 Microchip Technology Inc.
Register
Gain 1
Gain 2
Gain 4
Gain 5
Gain 8
Gain 10
Gain 16
Gain 32
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
SHDN
SHDN
SHDN
MCP6S26
MSB → LSB
00000
00001
00010
00011
00100
00101
00110
00111
10000
10001
10010
10011
10100
10101
11000
11010
MCP6S21
MSB → LSB
01000
01001
01010
01011
01100
01101
01110
01111
11001
11010
DS51327B-page 9
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