AD5260BRU50 Analog Devices Inc, AD5260BRU50 Datasheet
![IC POT DGTL 50K 256POS 14-TSSOP](/photos/31/30/313036/505-14-tssop_sml.jpg)
AD5260BRU50
Specifications of AD5260BRU50
Available stocks
Related parts for AD5260BRU50
AD5260BRU50 Summary of contents
Page 1
FEATURES 256 Positions AD5260 – 1-Channel AD5262 – 2-Channel (Independently Programmable) Potentiometer Replacement 200 k Low Temperature Coefficient 35 ppm/ C 4-Wire SPI-Compatible Serial Data Input Single-Supply; 5.5 ...
Page 2
AD5260/AD5262–SPECIFICATIONS ELECTRICAL CHARACTERISTICS 20 kW, 50 kW, 200 kW VERSIONS Parameter DC CHARACTERISTICS RHEOSTAT MODE Specifications apply to all VRs 2 Resistor Differential NL 2 Resistor Nonlinearity 3 Nominal Resistor Tolerance Resistance Temperature Coefficient Wiper Resistance Channel Resistance Matching (AD5262 ...
Page 3
Parameter INTERFACE TIMING CHARACTERISTICS apply to all parts Clock Frequency Input Clock Pulsewidth Data Setup Time Data Hold Time 13 CLK to SDO Propagation Delay CS Setup Time CS High Pulsewidth Reset Pulsewidth CLK Fall to CS Rise Hold Time ...
Page 4
... AD5260/AD5262 Model R (kW) AB AD5260BRU20 20 AD5260BRU20-REEL7 20 AD5260BRU50 50 AD5260BRU50-REEL7 50 AD5260BRU200 200 AD5260BRU200-REEL7 200 AD5262BRU20 20 AD5262BRU20-REEL7 20 AD5262BRU50 50 AD5262BRU50-REEL7 50 AD5262BRU200 200 AD5262BRU200-REEL7 200 * Line 1 contains part number, line 2 contains differentiating detail by part type and ADI logo symbol, line 3 contains date code YWW. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection ...
Page 5
Table I. AD5260 8-Bit Serial-Data Word Format DATA MSB SDI CLK 0 1 RDAC REGISTER LOAD CS 0 ...
Page 6
AD5260/AD5262 AD5260 PIN CONFIGURATION AD5260 TOP VIEW SHDN 5 10 (Not to Scale) CLK 9 6 SDI 8 7 AD5260 PIN FUNCTION DESCRIPTIONS Pin Number Mnemonic Description ...
Page 7
THEORY OF OPERATION The AD5260/AD5262 provide a single- or dual-channel, 256-position digitally controlled variable resistor (VR) device and operate maximum voltage. Changing the programmed VR settings is accomplished by clocking an 8-/9-bit serial data word into ...
Page 8
AD5260/AD5262 All digital inputs are protected with a series input resistor and parallel Zener ESD structure as shown in Figure 6. This applies to digital input pins CS, SDI, SDO, PR, SHDN, and CLK. 340 LOGIC Figure 6. ESD Protection ...
Page 9
SHDN RDAC LATCH AND DECODE R S DIGITAL CIRCUITRY OMITTED FOR CLARITY Figure 11. Simplified RDAC Architecture PROGRAMMING THE VARIABLE RESISTOR Rheostat ...
Page 10
AD5260/AD5262 —Typical Performance Characteristics 0.8 0.7 5V 0.6 0.5 0.4 0.3 12V 0.2 5V 0.1 0 –0.1 15V –0 128 160 192 224 256 CODE – Decimal TPC 1. R-INL vs. Code vs. Supply Voltages 0.5 ...
Page 11
+15V/ –1 –1.5 –2 +5V/ –2.5 –40 – 100 TEMPERATURE – C TPC 10. Full-Scale Error 28.0 ...
Page 12
AD5260/AD5262 CODE = – – – – – – – –48 –54 1k 10k 100k ...
Page 13
OPEN 20k 50k AB 0 200k AB 0. 128 160 192 224 256 CODE – ...
Page 14
AD5260/AD5262 TEST CIRCUITS (continued) V LOGIC I LOGIC CS CLK SDI DIGITAL INPUT VOLTAGE Test Circuit 8. V Current vs. Digital Input Voltage LOGIC DUT V B GND SS NC Test Circuit 9. ...
Page 15
AD5260 OUT W GND AD8601 B 2 AD1582 A1 Figure 15. Programmable Voltage Reference 8-Bit Bipolar DAC Figure 16 shows a low cost 8-bit bipolar DAC. It offers the same number ...
Page 16
AD5260/AD5262 that can deliver 2.048 V. The load current is simply the voltage across terminals B-to-W of the digital pot divided by R ¥ REF ...
Page 17
and V are interdependent variables. With proper selection R2B, an equilibrium will be reached such that V can be in series with a discrete resistor to increase the amplitude, but the total ...
Page 18
AD5260/AD5262 DIGITAL POTENTIOMETER FAMILY SELECTION GUIDE Number Terminal Interface Part of VRs per Voltage Data Number Package Range (V) Control ± 3, 5.5 AD5201 1 3-Wire AD5220 1 5.5 UP/DOWN ± 15, 28 AD7376 1 3-Wire ± 3, 5.5 AD5200 ...
Page 19
SEATING SEATING REV. 0 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 14-Lead TSSOP (RU-14) 0.201 (5.10) 0.193 (4.90 0.177 (4.50) 0.169 (4.30) 0.256 (6.50) 0.246 (6.25 PIN 1 0.006 (0.15) 0.0433 (1.10) MAX 0.002 (0.05) ...
Page 20
–20– ...