AD5206BRUZ50-REEL7 Analog Devices Inc, AD5206BRUZ50-REEL7 Datasheet

IC,Digital Potentiometer,TSSOP,24PIN,PLASTIC

AD5206BRUZ50-REEL7

Manufacturer Part Number
AD5206BRUZ50-REEL7
Description
IC,Digital Potentiometer,TSSOP,24PIN,PLASTIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD5206BRUZ50-REEL7

Taps
256
Resistance (ohms)
50K
Number Of Circuits
6
Temperature Coefficient
700 ppm/°C Typical
Memory Type
Volatile
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V, ±2.3 V ~ 2.7 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
24-TSSOP
Resistance In Ohms
50K
Number Of Elements
6
# Of Taps
256
Resistance (max)
50KOhm
Power Supply Requirement
Single/Dual
Interface Type
Serial (3-Wire/SPI)
Single Supply Voltage (typ)
3/5V
Dual Supply Voltage (typ)
±2.5V
Single Supply Voltage (min)
2.7V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (min)
±2.3V
Dual Supply Voltage (max)
±2.7V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
256 positions
Multiple independently programmable channels
Potentiometer replacement
Terminal resistance of 10 kΩ, 50 kΩ, 100 kΩ
3-wire SPI-compatible serial data input
+2.7 V to +5.5 V single-supply operation; ±2.7 V dual-supply
Power-on midscale preset
APPLICATIONS
Mechanical potentiometer replacement
Instrumentation: gain, offset adjustment
Programmable voltage-to-current conversion
Programmable filters, delays, time constants
Line impedance matching
GENERAL DESCRIPTION
The AD5204/AD5206 provide 4-/6-channel, 256-position
digitally controlled variable resistor (VR) devices. These
devices perform the same electronic adjustment function as a
potentiometer or variable resistor. Each channel of the AD5204/
AD5206 contains a fixed resistor with a wiper contact that taps
the fixed resistor value at a point determined by a digital code
loaded into the SPI-compatible serial-input register. The
resistance between the wiper and either endpoint of the fixed
resistor varies linearly with respect to the digital code transferred
into the VR latch. The variable resistor offers a completely
programmable value of resistance between the A terminal and
the wiper or the B terminal and the wiper. The fixed A-to-B
terminal resistance of 10 kΩ, 50 kΩ, or 100 kΩ has a nominal
temperature coefficient of 700 ppm/°C.
Each VR has its own VR latch that holds its programmed
resistance value. These VR latches are updated from an internal
serial-to-parallel shift register that is loaded from a standard
3-wire serial-input digital interface. Eleven data bits make up
the data-word clocked into the serial input register. The first
three bits are decoded to determine which VR latch is loaded
with the last eight bits of the data-word when the CS strobe is
returned to logic high. A serial data output pin at the opposite
end of the serial register (AD5204 only) allows simple daisy
chaining in multiple VR applications without requiring
additional external decoding logic.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
operation
AD5204—4-channel
AD5206—6-channel
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
An optional reset ( PR ) pin forces all the AD5204 wipers to the
midscale position by loading 0x80 into the VR latch.
The AD5204/AD5206 are available in the 24-lead surface-
mount SOIC, TSSOP, and PDIP packages. The AD5204 is also
available in a 32-lead, 5 mm × 5 mm LFCSP package. All parts are
guaranteed to operate over the extended industrial temperature
range of −40°C to +85°C. For additional single-, dual-, and quad-
channel devices, see the AD8400/AD8402/AD8403 data sheets.
SDO
GND
CLK
GND
SDI
CLK
CS
SDI
CS
FUNCTIONAL BLOCK DIAGRAMS
POWER-ON
POWER-ON
DO
DI
PRESET
PRESET
DI
REG
SER
REG
SER
Digital Potentiometers
D7
D0
A2
A1
A0
A2
A1
A0
D7
D0
©1999–2010 Analog Devices, Inc. All rights reserved.
ADDR
DEC
8
ADDR
EN
DEC
8
EN
Figure 1.
Figure 2.
AD5204/AD5206
D7
D0
D7
D0
D7
D0
D7
D0
LATCH
LATCH
RDAC
4-/6-Channel
RDAC
AD5204
LATCH
LATCH
RDAC
RDAC
AD5206
1
R
4
R
R
1
R
6
www.analog.com
B1
A1
W1
W4
V
A4
B4
SHDN
V
PR
W1
V
A1
B1
V
A6
W6
B6
DD
SS
DD
SS

Related parts for AD5206BRUZ50-REEL7

AD5206BRUZ50-REEL7 Summary of contents

Page 1

FEATURES 256 positions Multiple independently programmable channels AD5204—4-channel AD5206—6-channel Potentiometer replacement Terminal resistance of 10 kΩ, 50 kΩ, 100 kΩ 3-wire SPI-compatible serial data input +2 +5.5 V single-supply operation; ±2.7 V dual-supply operation Power-on midscale preset APPLICATIONS ...

Page 2

AD5204/AD5206 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Electrical Characteristics............................................................. 3 Timing Diagrams.............................................................................. 5 Absolute Maximum Ratings............................................................ 6 ESD Caution.................................................................................. 6 Pin Configurations and Function ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS ± 10 ± 10 Table 1. Parameter 2 DC CHARACTERISTICS RHEOSTAT MODE 3 Resistor Differential NL 3 Resistor Nonlinearity Error 4 Nominal Resistor ...

Page 4

AD5204/AD5206 Parameter 7, 11, 12 INTERFACE TIMING CHARACTERISTICS Input Clock Pulse Width Data Setup Time Data Hold Time CLK-to-SDO Propagation Delay 13 CS Setup Time CS High Pulse Width Reset Pulse Width CLK Fall to CS Fall Setup CLK Fall ...

Page 5

TIMING DIAGRAMS SDI CLK CS V OUT (DATA IN) (DATA OUT RDAC LATCH LOAD Figure 3. Timing Diagram 1 SDI ...

Page 6

AD5204/AD5206 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 2. Parameter Rating V to GND −0 GND − ...

Page 7

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 3. AD5204 SOIC/TSSOP/PDIP Pin Function Descriptions Pin No. Name Description Not Connected. 3 GND Ground Chip Select Input (Active Low). When CS returns high, data in the serial ...

Page 8

AD5204/AD5206 Table 4. AD5204 LFCSP Pin Function Descriptions Pin No. Name Description 1 V Negative Power Supply. This pin is specified for operation at both 0 V and −2 the sum ...

Page 9

Table 5. AD5206 Pin Function Descriptions Pin No. Name Description 1 A6 Terminal A RDAC Wiper RDAC 6. Address = 101 3 B6 Terminal B RDAC 6. 4 GND Ground Chip Select Input (Active Low). ...

Page 10

AD5204/AD5206 TYPICAL PERFORMANCE CHARACTERISTICS 120 110 2.7V/ 100 ±2. –3.0 –2.0 –1.0 0 1.0 2.0 COMMON MODE (V) Figure 9. Incremental On Resistance ...

Page 11

DATA = 0x80 –6 DATA = 0x40 –12 DATA = 0x20 –18 DATA = 0x10 –24 DATA = 0x08 –30 DATA = 0x04 –36 DATA = 0x02 –42 DATA = 0x01 – +2. ...

Page 12

AD5204/AD5206 OPERATION The AD5204 provides a 4-channel, 256-position digitally controlled VR device, and the AD5206 provides a 6-channel, 256-position digitally controlled VR device. Changing the pro- grammed VR settings is accomplished by clocking an 11-bit serial data-word into the SDI ...

Page 13

PROGRAMMING THE VARIABLE RESISTOR RHEOSTAT OPERATION The nominal resistance of the RDAC between Terminal A and Terminal B is available with values of 10 kΩ, 50 kΩ, and 100 kΩ. The last digits of the part number determine the nominal ...

Page 14

AD5204/AD5206 PROGRAMMING THE POTENTIOMETER DIVIDER VOLTAGE OUTPUT OPERATION The digital potentiometer easily generates an output voltage proportional to the input voltage applied to a given terminal. For example, connecting Terminal and Terminal B to ground produces ...

Page 15

DIGITAL INTERFACING The AD5204/AD5206 each contain a standard 3-wire serial input control interface. The three inputs are clock (CLK), chip select input ( CS ), and serial data input (SDI). The positive- edge-sensitive CLK input requires clean transitions to avoid ...

Page 16

AD5204/AD5206 TEST CIRCUITS 340kΩ LOGIC V SS Figure 25. ESD Protection of Digital Pins Figure 26. ESD Protection of Resistor Terminals DUT 1LSB = V+/256 Figure ...

Page 17

OUTLINE DIMENSIONS 24 1 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR ...

Page 18

AD5204/AD5206 0.15 0.05 PIN 1 INDICATOR 12° MAX 1.00 0.85 0.80 SEATING PLANE ORDERING GUIDE 1, 2 Model kΩ Temperature Range AD5204BN10 10 −40°C to +85°C AD5204BR10 10 −40°C to +85°C AD5204BR10-REEL 10 −40°C to +85°C AD5204BRZ10 10 −40°C to ...

Page 19

... AD5206BRU50-REEL 50 −40°C to +85°C AD5206BRU50-REEL7 50 −40°C to +85°C AD5206BRUZ50 50 −40°C to +85°C AD5206BRUZ50-REEL7 50 −40°C to +85°C AD5206BN100 100 −40°C to +85°C AD5206BR100 100 −40°C to +85°C AD5206BR100-REEL 100 −40°C to +85°C ...

Page 20

AD5204/AD5206 NOTES ©1999–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06884-0-7/10(C) Rev Page ...

Related keywords