DS1804X-100/T&R datasheet, PDF

Datasheet> All Categories > Analog mixed-signal IC> converter> DS1804X-100/T&R

DS1804X-100/T&R: DescriptionDigital Potentiometer ICs; CategoryAnalog mixed-signal IC converter; File Size166KB，10 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html

Download Datasheet Parametric View All

DS1804X-100/T&R Overview

Digital Potentiometer ICs

DS1804X-100/T&R Parametric

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Maxim
Parts packaging code	BGA
package instruction	0.118 INCH, FCP-8
Contacts	8
Reach Compliance Code	not_compliant
ECCN code	EAR99
Factory Lead Time	1 week
Other features	NONVOLATILE MEMORY
Nominal bandwidth	0.1 kHz
control interface	INCREMENT/DECREMENT
Converter type	DIGITAL POTENTIOMETER
JESD-30 code	R-PBGA-B8
JESD-609 code	e0
length	2.515 mm
Number of functions	1
Number of positions	100
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	VFBGA
Encapsulate equivalent code	FLIP CHIP
Package shape	RECTANGULAR
Package form	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)	240
power supply	3/5 V
Certification status	Not Qualified
resistance law	LINEAR
Maximum resistor tolerance	20%
Maximum resistor terminal voltage	5.5 V
Minimum resistor terminal voltage	-0.5 V
Maximum seat height	0.644 mm
Nominal supply voltage	5 V
surface mount	YES
Nominal temperature coefficient	750 ppm/°C
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	BALL
Terminal location	BOTTOM
Maximum time at peak reflow temperature	NOT SPECIFIED
Nominal total resistance	100000 Ω
width	1.804 mm

Preview

Download Datasheet

View All

19-5876; Rev 6/11

DS1804

Nonvolatile Trimmer Potentiometer

FEATURES



Single

100-Position Taper Potentiometer

Nonvolatile (NV) On-Demand Wiper

Storage

Operates from 3V or 5V Supplies

Up/Down, Increment-Controlled Interface

Available in 8-Pin (300 mils) DIP, 8-Pin

(150 mils) SO, and 8-Pin (118 mils) µSOP

-40°C to +85°C Operating Temperature

Range

Standard Resistance Values:

–

DS1804-010: 10kΩ

–

DS1804-050: 50kΩ

–

DS1804-100: 100kΩ

PIN ASSIGNMENT

INC

U/D

GND

DIP (300 mils)

SO (150 mils)

μSOP (118

mils)

PIN DESCRIPTION

INC

GND

High-Terminal of Potentiometer

Low-Terminal of Potentiometer

Wiper of Potentiometer

3V or 5V Power Supply

Chip Select

Up/Down Control

Increment/Decrement Wiper Control

Ground

DESCRIPTION

The DS1804 NV trimmer potentiometer is a nonvolatile digital potentiometer that has 100 positions. The

device provides an ideal method for low-cost trimming applications using a CPU or manual control input

with minimal external circuitry. Wiper position of the DS1804 can be stored in EEPROM memory on

demand. The device’s wiper position is manipulated by a three-terminal port that provides an increment/

decrement counter controlled interface. This port consists of the control inputs

INC

, and U/

. The

DS1804 is available in three resistor grades, which include a 10kΩ, 50kΩ, and 100kΩ. The device is

provided in an industrial temperature grade. Additionally, the DS1804 will operate from 3V or 5V

supplies and is ideal for portable application requirements. Three packaging options are available and

include the 8-pin (300 mils) DIP, 8-pin (150 mils) SO, and 8-pin (118 mils)

μSOP.

1 of 10

DS1804

DS1804 BLOCK DIAGRAM

Figure 1

POWER-UP/POWER-DOWN CONDITIONS

On power-up, the DS1804 will load the value of EEPROM memory into the wiper position register (or 1

of 100 decoder). The value of this register can then be set to another wiper position if desired, by using

the three-terminal control port. On power-up, wiper position will be loaded within a maximum time

period of 500µs once the power-supply is stable. Additionally, the three-terminal interface port will be

active after 50ms.

On power-down, the wiper position register data will be lost. On the next device power-up, the value of

EEPROM memory will be loaded into the wiper position register.

On shipment from the factory, Maxim Integrated Products does not guarantee a specified EEPROM

memory value. This value should be set by the customer as needed.

NONVOLATILE WIPER STORAGE

Wiper position of the DS1804 can be stored using the

INC

and

inputs. Storage of the wiper position

takes place whenever the

input transitions from low-to-high while the

INC

is high. Once this

condition has occurred the value of the current wiper position will be written to EEPROM memory.

The DS1804 is specified to accept 50,000 writes to EEPROM over 0°C to 70ºC before a wear-out

condition. After wear-out the DS1804 will still function and wiper position can be changed during

powered conditions using the three-terminal control port. However, on power-up the wiper-position will

be indeterminate.

ONE-TIME PROGRAMMABILITY (OTP)

The DS1804 can be easily used as an OTP device. The user of the DS1804 can trim the desired value of

the wiper position and set this position for storage as described above. Any activity through the three-

terminal port can then be prevented by connecting the

input pin to V

. Also, an OTP application

does not adversely affect the number of times EEPROM is written, since EEPROM will only be loaded

and

not written

during a power-up or power-down condition.

On power-up, the DS1804 will load the current value of EEPROM memory into the wiper position

3 of 10

Recommended Resources

Voice signal detector circuit diagram installed on telephone line

Unijunction transistor trigger circuit

active antenna

Phase difference measurement circuit

A multi-purpose sound circuit diagram

LCD scanning interface conversion VGA interface circuit diagram

【MicroPython】Using MCO as a clock: MicroPython uses HSE as the clock by default, but the Nucleo development board uses the external clock (MCO) by default. Foreign netizens have added an MCO setting for this purpose, which can use the ...; dcexpert MicroPython Open Source section

Good news! Owning an ultra-high performance UXR series oscilloscope is no longer a dream!: [b][font=微软雅黑][size=4]Good news! Owning an ultra-high performance UXR series oscilloscope is no longer a dream![/size][/font][/b][backcolor=white] [/backcolor] [backcolor=white][font=微软雅黑][size=3][b]R...; EEWORLD社区 Test/Measurement

Brain-electromechanical control robot arm (robot arm for elderly care and disabled assistance): ...; 硅步Robot Talking

[NXP Rapid IoT Review] + Mobile Synchronizer 5: [i=s] This post was last edited by Beifang on 2019-1-11 20:01 [/i] 1. The debugging process after designing the first example program is also very simple. Continuing the project development of the pre...; 北方 RF/Wirelessly

EEWORLD University Hall----Live Replay: Detailed Explanation of Ultra-Low Power RSL10 Bluetooth SoC Development Board: Live replay: Detailed explanation of ultra-low power RSL10 Bluetooth SoC development board : https://training.eeworld.com.cn/course/6056...; hi5 Integrated technical exchanges

51 single chip digital tube display: Why does the tens digit flash after this program is written into the microcontroller, but yours does not? Please give me some advice, thank you #include #define uchar unsigned char #define uint unsign...; 123哈哈哈 51mcu

Shortcut: 00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W

Popular Components