DS1804 Dallas Semiconducotr, DS1804 Datasheet - Page 6

• Manufacturer Part Number: DS1804
• Description: NV Trimmer Potentiometer
• Manufacturer: Dallas Semiconducotr

NOTES:
1. All voltages are referenced to ground.
2. Valid for V
3. Resistor input voltages cannot go below ground or exceed V
4. Maximum current specifications are based on the clock rate of
5. Standby current levels apply when all inputs are driven to appropriate supply levels.
6. Wiper load time is specified as the time required for the DS1804 to load the wiper position with the
7. The DS1804 is available in three resistor values. These include the DS1804-010; 10 k , the DS1804-
8. Valid at 25°C only.
9. Absolute linearity is used to compare measured wiper voltage versus expected wiper voltage as
10. Relative linearity is used to determined the change in voltage between successive tap positions. The
11. -3 dB cutoff frequency characteristics for the DS1804 depend on potentiometer total resistance.
12. Capacitance values apply at 25°C.
13. See Figure 2.
14. Power-up time is specified as the time required before the 3-terminal control becomes active after a
15. At V
16. The
17. Wiper Storage Time, t
represents the current required when changing the wiper position.
V
contents of nonvolatile memory once V
than 2.7V.
050 50 k ; and the DS1804-100 100 k .
determined by wiper position. The DS1804 is specified to provide an absolute linearity of ±0.60 LSB.
DS1804 is specified to provide a relative linearity specification of ±0.25 LSB.
DS1804-010, 1 MHz, DS1804-050; 200 kHz, and DS1804-100; 100 kHz.
stable power supply level has been reached.
allows the DS1804 3-terminal port to become inactive without writing the EEPROM memory of the
part.
of a new wiper position. The maximum time required to accomplish this task is specified at 10 ms.
CC
.
CC
INC
= 2.7V, V
low to
CC
= 5V only.
CS
IL
= 0.8V.
inactive is specified to be 50 ns minimum. This is the transition condition which
WST
, is the time require for the DS1804 to write EEPROM memory for storage
CC
6 of 7
has reached a stable operating voltage equal to or greater
CC
by the amounts as shown in the table.
INC
input. This specification
CS
,
INC
102699
, U/
DS1804
D
=