参数资料
| 型号： | AD5273BRJ1-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/24页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 1K 64POS SOT23-8 |
| 标准包装： | 1 |
| 接片： | 64 |
| 电阻（欧姆）： | 1k |
| 电路数： | 1 |
| 温度系数： | 标准值 300 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 |
| 供应商设备封装： | SOT-23-8 |
| 包装： | 剪切带 (CT) |
| 配用： | AD5273EVAL-ND - BOARD EVAL FOR AD5273 |
| 其它名称： | AD5273BRJ1-R2CT |
AD5273
Rev. H | Page 16 of 24
CONTROLLING THE AD5273
To control the AD5273, users can program the device with
either computer software or with external I2C controllers.
SOFTWARE PROGRAMMING
Because of the OTP feature, users can program the AD5273 in
the factory before shipping it to end users. Therefore, Analog
Devices offers device programming software that can be imple-
mented in the factory on computers running Windows NT,
Windows 2000, and Windows XP platforms. The software,
which can be downloaded from the AD5273 product page at
www.analog.com, is an executable file that does not require any
programming languages or user programming skills. Figure 39
shows the software interface.
03224-
040
Figure 39. Software Interface
Write
The AD5273 starts at midscale after power-up prior to any OTP
programming. To increment or decrement the resistance, move
the scrollbar on the left. Once the desired setting is found, click
Program Permanent
to lock the setting permanently. To write
any specific values, use the bit pattern control in the upper
section and click Run. The format of writing data to the device
is shown in Figure 31. Once the desired setting is found, set the
T bit to 1 and click Run to program the setting permanently.
Read
To read the validation bits and data from the device, click Read.
The user can also set the bit pattern in the upper section and
click Run. The format of reading data from the device is shown
in Figure 32.
To control the device in both read and write operations, the
program generates the I2C digital signals through the parallel
port LPT1 Pin 2, Pin 3, Pin 15, and Pin 25 for SDA_write, SCL,
SDA_read, and DGND, respectively (see Figure 40).
To apply the device programming software in the factory, lay
out the AD5273 SCL and SDA pads on the PCB such that the
programming signals can be communicated to and from the
AD5273 PCB layout into which pogo pins can be inserted for
factory programming. To prevent damaging the PC parallel
port, 100 Ω resistors should also be put in series to the SCL and
SDA pins. Pull-up resistors on SCL and SDA are also required.
03224-041
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
SCL
R3
100
Ω
R1
100
Ω
R2
100
Ω
SDA
READ
WRITE
R4
10k
Ω
R5
10k
Ω
VDD
Figure 40. Parallel Port Connection; Pin 2 = SDA_Write, Pin 3 = SCL,
Pin 15 = SDA_Read, and Pin 25 = DGND
W
VDD
GND
SCL
A
B
AD0
SDA
03
22
4-
04
2
Figure 41. Recommended AD5273 PCB Layout
相关PDF资料 |
PDF描述 |
|---|---|
| AD5273BRJ100-R2 | IC DGTL POT 100K 64POS SOT23-8 |
| 7WBD3306BMX1TCG | IC BUS SWITCH DUAL 1X1 8LLGA |
| LMK04031BISQE/NOPB | IC CLOCK CONDITIONER W/PLL 48LLP |
| AD5273BRJ50-R2 | IC DGTL POT 50K 64POS SOT23-8 |
| AD8400AR1 | IC DGTL POT 8BIT 1K 1CH 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5273BRJ1-REEL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD5273BRJ50-R2 | 功能描述:IC DGTL POT 50K 64POS SOT23-8 RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:2,500 系列:XDCP™ 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 ±300 ppm/°C 存储器类型:非易失 接口:I²C（设备位址） 电源电压:2.7 V ~ 5.5 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:带卷 (TR) |
| AD5273BRJ50-REEL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:64-Position OTP Digital Potentiometer |
| AD5273BRJZ100-R2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD5273BRJZ100-R7 | 功能描述:IC POT DGTL 1K 64POS SOT23 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,300 系列:WiperLock™ 接片:257 电阻（欧姆）:100k 电路数:1 温度系数:标准值 150 ppm/°C 存储器类型:易失 接口:3 线 SPI（芯片选择） 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:8-VDFN 裸露焊盘 供应商设备封装:8-DFN-EP（3x3） 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。