AD5253BRUZ100 Analog Devices Inc, AD5253BRUZ100 Datasheet
![IC,Digital Potentiometer,CMOS,TSSOP,20PIN,PLASTIC](/photos/6/56/65613/ru-20_sml.jpg)
AD5253BRUZ100
Specifications of AD5253BRUZ100
Available stocks
Related parts for AD5253BRUZ100
AD5253BRUZ100 Summary of contents
Page 1
FEATURES AD5253: quad 64-position resolution AD5254: quad 256-position resolution 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ 1 Nonvolatile memory stores wiper settings w/write protection Power-on refreshed to EEMEM settings in 300 μs typ EEMEM rewrite time = 540 μs ...
Page 2
AD5253/AD5254 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Electrical Characteristics ................................................................. 3 1 kΩ Version .................................................................................. 3 10 kΩ, 50 kΩ, 100 kΩ Versions .................................................. ...
Page 3
ELECTRICAL CHARACTERISTICS 1 kΩ VERSION ± 10 ± 10 Table 1. Parameter Symbol DC CHARACTERISTICS— RHEOSTAT MODE Resolution N Resistor Differential Nonlinearity 2 R-DNL 2 ...
Page 4
AD5253/AD5254 Parameter Symbol DIGITAL INPUTS AND OUTPUTS Input Logic High V Input Logic Low V Output Logic High (SDA) V Output Logic Low (SDA Leakage Current I A0 Leakage Current I Input Leakage Current I (Other than WP ...
Page 5
VERSIONS ± 10 ± 10 Table 2. Parameter Symbol DC CHARACTERISTICS— RHEOSTAT MODE Resolution N 2 Resistor Differential Nonlinearity ...
Page 6
AD5253/AD5254 Parameter Symbol POWER SUPPLIES Single-Supply Power Range V DD Dual-Supply Power Range V DD Positive Supply Current I DD Negative Supply Current I SS EEMEM Data Storing Mode I DD_STORE Current EEMEM Data Restoring Mode I DD_RESTORE 6 Current ...
Page 7
INTERFACE TIMING CHARACTERISTICS All input control voltages are specified with t characteristics are measured using both V Table 3. 1 Parameter INTERFACE TIMING SCL Clock Frequency t Bus-Free Time Between Stop and Start BUF t Hold Time (Repeated Start) HD;STA ...
Page 8
AD5253/AD5254 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted A Table 4. Parameter V to GND GND GND Maximum Current I ...
Page 9
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 W0 Wiper Terminal of RDAC0 Terminal of RDAC0 Terminal of RDAC0 AD0 I C ...
Page 10
AD5253/AD5254 TYPICAL PERFORMANCE CHARACTERISTICS 1.0 0 –40°C, +25°C, +85°C, +125°C 0.6 A 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 128 160 CODE (Decimal) Figure 3. R-INL vs. Code 1.0 0 –40°C, ...
Page 11
DATA = 0x00 200 25°C 180 A 160 140 120 V = 5.5V DD 100 T = 25° (V) BIAS ...
Page 12
AD5253/AD5254 0 –6 0x80 –12 0x40 –18 0x20 –24 0x10 –30 0x08 –36 0x04 –42 0x02 –48 0x01 –54 –60 10 100 1k 10k 100k FREQUENCY (Hz) Figure 15. Gain vs. Frequency vs. Code 0x80 –6 0x40 –12 ...
Page 13
R = 1kΩ 25° 10kΩ 50kΩ 100kΩ CODE ...
Page 14
AD5253/AD5254 INTERFACE SCL SDA INTERFACE GENERAL DESCRIPTION From Master to Slave From Slave to Master S = start condition P = stop condition A = acknowledge ...
Page 15
I C INTERFACE DETAIL DESCRIPTION From Master to Slave From Slave to Master S = start condition P = stop condition A = acknowledge (SDA low not acknowledge (SDA high) 2 AD1, AD0 = I C device ...
Page 16
AD5253/AD5254 RDAC/EEMEM Write Setting the wiper position requires an RDAC write operation. The single write operation is shown in Figure 27, and the consecutive write operation is shown in Figure 28. In the consecutive write operation, if the RDAC is ...
Page 17
From Master to Slave From Slave to Master S = start condition P = stop condition A = acknowledge (SDA low not acknowledge (SDA high) 2 AD1, AD0 = I C device address bits, must match with the ...
Page 18
AD5253/AD5254 RDAC/EEMEM Quick Commands The AD5253/AD5254 feature 12 quick commands that facilitate easy manipulation of RDAC wiper settings and provide RDAC- to-EEMEM storing and restoring functions. The command format is shown in Figure 31, and the command descriptions are shown ...
Page 19
Table 10. Address Table for Reading Tolerance (CMD/ REG = 0, EE/ RDAC = ...
Page 20
AD5253/AD5254 2 I C-COMPATIBLE 2-WIRE SERIAL BUS 1 SCL AD1 AD0 R SDA START BY FRAME 1 MASTER SLAVE ADDRESS BYTE 1 SCL 0 SDA START BY MASTER The first byte of the AD5253/AD5254 is ...
Page 21
THEORY OF OPERATION The AD5253/AD5254 are quad-channel digital potentiometers in 1 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ that allow 64/256 linear resis- tance step adjustments. The AD5253/AD5254 employ double- gate CMOS EEPROM technology, which allows resistance settings and ...
Page 22
AD5253/AD5254 DIGITAL INPUT/OUTPUT CONFIGURATION SDA is a digital input/output with an open-drain MOSFET that requires a pull-up resistor for proper communication. On the other hand, SCL and WP are digital inputs for which pull-up resistors are recommended to minimize the ...
Page 23
× 4 DECODER × 4 DECODER 4 2 × 4 DECODER × 4 DECODER P4 R4 Figure 38. Four Devices with AD1 and AD0 of ...
Page 24
AD5253/AD5254 DIGITAL POTENTIOMETER OPERATION The structure of the RDAC is designed to emulate the performance of a mechanical potentiometer. The RDAC contains a string of resistor segments with an array of analog switches that act as the wiper connection to ...
Page 25
(Code in Decimal) Figure 43. AD5253 R (D) and R (D) vs. Decimal Code WA WB Since the digital potentiometer is not ideal Ω finite wiper resistance ...
Page 26
AD5253/AD5254 APPLICATIONS INFORMATION RGB LED BACKLIGHT CONTROLLER FOR LCD PANELS Because high power (>1 W) RGB LEDs offer superior color quality compared with cold cathode florescent lamps (CCFLs) as backlighting sources likely that high-end LCD panels will employ ...
Page 27
C10 10μ RDAC3 0.1μF 22kΩ 22kΩ B3 10kΩ SCL CLK U3D SDA SDI V = 2.5V REF AD8594 AD5254 250kΩ 250kΩ 250kΩ A2 RDAC2 B2 10kΩ A1 RDAC1 B1 ...
Page 28
AD5253/AD5254 OUTLINE DIMENSIONS COPLANARITY 6.60 6.50 6. 4.50 4.40 4.30 6.40 BSC 1 10 PIN 1 0.65 BSC 1.20 MAX 0.15 0.20 0.05 0.09 0.30 0.19 SEATING 0.10 PLANE COMPLIANT TO JEDEC STANDARDS MO-153-AC Figure 46. 20-Lead Thin ...
Page 29
... AD5253BRUZ1-RL7 64 AD5253BRU10 64 AD5253BRU10-RL7 64 2 AD5253BRUZ10 64 2 AD5253BRUZ10-RL7 64 AD5253BRU50 64 AD5253BRU50-RL7 64 AD5253BRUZ50 AD5253BRUZ50-RL7 64 AD5253BRU100 64 AD5253BRU100-RL7 64 2 AD5253BRUZ100 64 2 AD5253BRUZ100-RL7 64 AD5253EVAL 64 AD5254BRU1 256 AD5254BRU1-RL7 256 2 AD5254BRUZ1 256 2 AD5254BRUZ1-RL7 256 AD5254BRU10 256 AD5254BRU10-RL7 256 AD5254BRUZ10 2 256 2 AD5254BRUZ10-RL7 256 AD5254BRU50 256 AD5254BRU50-RL7 256 2 AD5254BRUZ50 256 2 ...
Page 30
AD5253/AD5254 NOTES Rev Page ...
Page 31
NOTES Rev Page AD5253/AD5254 ...
Page 32
AD5253/AD5254 NOTES 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I Rights to use these components system, ...