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PDF DS1804 Data sheet ( Hoja de datos )
| Número de pieza | DS1804 | |
| Descripción | Nonvolatile Trimmer Potentiometer | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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1. DS1804  Hay una vista previa y un enlace de descarga de DS1804 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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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 1
U/D 2
H3
GND 4
8 VCC
7 CS
6L
5W
DIP (300 mils)
SO (150 mils)
μSOP (118 mils)
PIN DESCRIPTION
H - High-Terminal of Potentiometer
L - Low-Terminal of Potentiometer
W - Wiper of Potentiometer
VCC - 3V or 5V Power Supply
CS - Chip Select
U/ D - Up/Down Control
INC - Increment/Decrement Wiper Control
GND
- 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 CS , INC , and U/ D . 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.
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ANALOG RESISTOR CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL MIN TYP
MAX
End-to-End Resistor Tolerance
-20
+20
Absolute Linearity
±0.6
Relative Linearity
±0.25
-3dB Cutoff Frequency
fCUTOFF
Temperature Coefficient
750
DS1804
UNITS
%
LSB
NOTES
8
9
LSB 10
MHz
11
ppm/°C
CAPACITANCE
(VCC = 2.7V to 5.5V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL MIN
TYP
Input Capacitance
CIN
Output Capacitance
COUT
MAX
5
7
UNITS
pF
pF
NOTES
12
12
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.7V to 5.5V, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL MIN
TYP MAX
CS to INC Setup
tCI 50
U/ D to INC Setup
tDI 100
INC Low Period
tIL 50
INC High Period
INC inactive to CS Inactive
CS Deselect Time
tIH
tIC
tCPH
100
500
100
Wiper Change to INC Low
tIW
200
INC Rise and Fall Times
tR, tF
500
INC Low to CS Inactive
tIK 50
Wiper Storage Time
tWST
10
UNITS NOTES
ns 13
ns 13
ns 13
ns 13
ns 13
ns 13
ns 13
µs 13
ns 16
ms 13, 17
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5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet DS1804.PDF ] | |
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