- 您现在的位置：买卖IC网 > PDF目录9184 > MAX5419PETA+T (Maxim Integrated Products)IC POT DGTL 256-TAP I2C 8-TDFN PDF资料下载
参数资料
| 型号： | MAX5419PETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC POT DGTL 256-TAP I2C 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 256 |
| 电阻（欧姆）： | 200k |
| 电路数： | 1 |
| 温度系数： | 标准值 35 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.25 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： | 带卷 (TR) |
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
12
______________________________________________________________________________________
ADDRESS BYTE
CONTROL BYTE
DATA BYTE
1
2345
678
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
P
SCL CYCLE
NUMBER
S
A6
A5
A4
A3
A2
A1
A0
ACK
TX
NV
V
R3
R2
R1
R0
ACK
D7
D6
D5
D4
D3
D2
D1
D0
ACK
VREG
0
1
0
1
A2
A1
A0
0
1
0
1
D7
D6
D5
D4
D3
D2
D1
D0
NVREG
0
1
0
1
A2
A1
A0
0
1
0
1
D7
D6
D5
D4
D3
D2
D1
D0
NVREGxVREG
0
1
0
1
A2
A1
A0
0
1
0
1
XX
VREGxNVREG
0
1
0
1
A2
A1
A0
0
1
0
1
0
1
XX
Table 2. Command Byte Summary
Nonvolatile Memory
The internal EEPROM consists of an 8-bit nonvolatile
register that retains the value written to it before the
device is powered down. The nonvolatile register is
programmed with the midscale value at the factory.
Power-Up
Upon power-up, the MAX5417/MAX5418/MAX5419
load the data stored in the nonvolatile memory register
into the volatile memory register, updating the wiper
position with the data stored in the nonvolatile memory
register. This initialization period takes 10s.
Standby
The MAX5417/MAX5418/MAX5419 feature a low-power
standby. When the device is not being programmed, it
goes into standby mode and power consumption is
typically 500nA.
Applications Information
The MAX5417/MAX5418/MAX5419 are intended for cir-
cuits requiring digitally controlled adjustable resis-
tance, such as LCD contrast control (where voltage
biasing adjusts the display contrast), or for programma-
ble filters with adjustable gain and/or cutoff frequency.
Positive LCD Bias Control
Figures 9 and 10 show an application where the volt-
age-divider or variable resistor is used to make an
adjustable, positive LCD bias voltage. The op amp pro-
vides buffering and gain to the resistor-divider network
made by the potentiometer (Figure 9) or to a fixed
resistor and a variable resistor (see Figure 10).
Programmable Filter
Figure 11 shows the configuration for a 1st-order pro-
grammable filter. The gain of the filter is adjusted by
R2, and the cutoff frequency is adjusted by R3. Use the
following equations to calculate the gain (G) and the
3dB cutoff frequency (fC):
G
R
f
RC
C
=+
=
××
1
2
1
23
π
VOUT
30V
5V
W
H
L
MAX5417
MAX5418
MAx5419
VOUT
30V
5V
W
H
L
MAX5417
MAX5418
MAX5419
Figure 9. Positive LCD Bias Control Using a Voltage-Divider
Figure 10. Positive LCD Bias Control Using a Variable Resistor
X = Don’t care.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5419META+T | IC POT DGTL 256-TAP I2C 8-TDFN |
| VI-BWZ-MY-F4 | CONVERTER MOD DC/DC 2V 20W |
| MAX5419NETA+T | IC POT DGTL 256-TAP I2C 8-TDFN |
| VI-BWZ-MY-F3 | CONVERTER MOD DC/DC 2V 20W |
| VI-B5X-MW-B1 | CONVERTER MOD DC/DC 5.2V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX541ACPA | 功能描述:数模转换器- DAC 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 |
| MAX541ACPA+ | 功能描述:数模转换器- DAC 16-Bit Precision DAC 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 |
| MAX541ACSA | 功能描述:数模转换器- DAC 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 |
| MAX541ACSA+ | 功能描述:数模转换器- DAC 16-Bit Precision DAC 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 |
| MAX541ACSA+T | 功能描述:数模转换器- DAC 16-Bit Precision DAC 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。