- 您现在的位置：买卖IC网 > PDF目录9424 > AD5293BRUZ-100 (Analog Devices Inc)IC DGTL POT 1024POS 100K 14TSSOP PDF资料下载
参数资料
| 型号： | AD5293BRUZ-100 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT 1024POS 100K 14TSSOP |
| 标准包装： | 96 |
| 接片： | 1024 |
| 电阻（欧姆）： | 100k |
| 电路数： | 1 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 4 线串行 |
| 电源电压： | 9 V ~ 33 V，±9 V ~ 16.5 V |
| 工作温度： | -40°C ~ 105°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： | 管件 |
| 产品目录页面： | 787 (CN2011-ZH PDF) |
AD5293
Rev. D | Page 20 of 24
Table 13. Control Register Function
Register Name
Bit Name
Description
Control
C2
Calibration enable.
0 = resistor performance mode (default).
1 = normal mode.
C1
RDAC register write protect.
0 = locks the wiper position through the digital interface (default).
1 = allows update of wiper position through digital interface.
RDAC ARCHITECTURE
To achieve optimum performance, Analog Devices, Inc., has
patented the RDAC segmentation architecture for all the digital
potentiometers. In particular, the AD5293 employs a 3-stage
segmentation approach, as shown in Figure 46. The AD5293
wiper switch is designed with transmission gate CMOS topology
and with the gate voltage derived from VDD.
RW
SW
W
RW
10-BIT
ADDRESS
DECODER
A
RL
RM
B
RM
RL
07
67
5
-04
0
Figure 46. Simplified RDAC Circuit
PROGRAMMING THE VARIABLE RESISTOR
Rheostat Operation—1% Resistor Tolerance
The AD5293 operates in rheostat mode when only two terminals
are used as a variable resistor. The unused terminal can be left
floating or it can be tied to the W terminal, as shown in Figure 47.
W
A
B
W
A
B
W
A
B
076
75
-0
41
Figure 47. Rheostat Mode Configuration
The nominal resistance between Terminal A and Terminal B,
RAB, is available in 20 kΩ, 50 kΩ, and 100 kΩ and has 1024 tap
points that are accessed by the wiper terminal. The 10-bit data
in the RDAC latch is decoded to select one of the 1024 possible
wiper settings. The AD5293 contains an internal ±1% resistor
tolerance calibration feature that can be enabled or disabled,
enabled by default by programming Bit C2 of the control
The digitally programmed output resistance between the
W terminal and the A terminal, RWA, and the W terminal
and B terminal, RWB, is calibrated to give a maximum of ±1%
absolute resistance error over both the full supply and temperature
ranges. As a result, the general equation for determining the
digitally programmed output resistance between the W terminal
and B terminal is
AB
WB
R
D
R
×
=
1024
)
(
(1)
where:
D
is the decimal equivalent of the binary code loaded in the
10-bit RDAC register.
RAB
is the end-to-end resistance.
Similar to the mechanical potentiometer, the resistance of the RDAC
between the W terminal and the A terminal also produces a digitally
controlled complementary resistance, RWA. RWA is also calibrated
to give a maximum of 1% absolute resistance error. RWA starts at
the maximum resistance value and decreases as the data loaded
into the latch increases. The general equation for this operation is
AB
WA
R
D
R
×
=
1024
)
(
(2)
where:
D
is the decimal equivalent of the binary code loaded in the
10-bit RDAC register.
RAB
is the end-to-end resistance.
In the zero-scale condition, a finite total wiper resistance of 120 Ω
is present. Regardless of the setting in which the part is operating,
care should be taken to limit the current between the A terminal to
B terminal, the W terminal to the A terminal, and the W terminal
to the B terminal to the maximum continuous current of ±3 mA or
to the pulse current specified in Table 6. Otherwise, degradation,
or possible destruction of the internal switch contact, can occur.
相关PDF资料 |
PDF描述 |
|---|---|
| VI-B40-MX-B1 | CONVERTER MOD DC/DC 5V 75W |
| VE-B2H-MY-F3 | CONVERTER MOD DC/DC 52V 50W |
| VI-BNR-IU-F1 | CONVERTER MOD DC/DC 7.5V 200W |
| VI-B3M-MX-B1 | CONVERTER MOD DC/DC 10V 75W |
| VE-B2H-MY-F2 | CONVERTER MOD DC/DC 52V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5293BRUZ-100-RL7 | 功能描述:IC DGTL POT 1024POS 100K 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| AD5293BRUZ-20 | 功能描述:IC DGTL POT 1024POS 20K 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 35 ppm/°C 存储器类型:非易失 接口:3 线串口 电源电压:2.7 V ~ 5.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN-EP（3x3） 包装:剪切带 (CT) 产品目录页面:1399 (CN2011-ZH PDF) 其它名称:MAX5423ETA+TCT |
| AD5293BRUZ-20-RL7 | 功能描述:IC DGTL POT 1024POS 20K 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
| AD5293BRUZ-50 | 功能描述:IC DGTL POT 1024POS 50K 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 接片:256 电阻（欧姆）:100k 电路数:1 温度系数:标准值 35 ppm/°C 存储器类型:非易失 接口:3 线串口 电源电压:2.7 V ~ 5.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN-EP（3x3） 包装:剪切带 (CT) 产品目录页面:1399 (CN2011-ZH PDF) 其它名称:MAX5423ETA+TCT |
| AD5293BRUZ-50-RL7 | 功能描述:IC DGTL POT 1024POS 50K 14TSSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数字电位器 系列:- 标准包装:3,000 系列:DPP 接片:32 电阻（欧姆）:10k 电路数:1 温度系数:标准值 300 ppm/°C 存储器类型:非易失 接口:3 线串行（芯片选择，递增，增/减） 电源电压:2.5 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WFDFN 裸露焊盘 供应商设备封装:8-TDFN（2x3） 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。