ADI AD5204BRUZ10-REEL7

线性425610kSPI2.7V ~ 5.5V，±2.3V ~ 2.7V-40°C ~ 85°C

Overview

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 (AD5204BRUZ10-REEL7 only) allows simple daisy chaining in multiple VR applications without requiring additional external decoding logic.  An optional reset (PR) pin forces all the AD5204BRUZ10-REEL7 wipers to the midscale position by loading 0x80 into the VR latch. The AD5204/AD5206 are available in the 24-lead surfacemount SOIC, TSSOP, and PDIP packages. The AD5204BRUZ10-REEL7 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 quadchannel devices, see the AD8400/AD8402/AD8403 data sheets. 

Features

Tape & Reel (TR) Package
Available in 24-TSSOP (0.173, 4.40mm Width) package
4 Circuits
Mounting Type: Surface Mount
Operate temperature at the range of -40°C~85°C
24 pins
Quiescent Current at 12μA

50 Resistance - Wiper (Ohms) (Typ)

Applications

There are a lot of Analog Devices Inc.
AD5204BRUZ10-REEL7 Digital Potentiometers applications.

• Modern office equipment
• Industrial control
• Medical equipment
• Refrigerator
• Programmable computer
• Power supply
• Power meter
• Automatic detection of equipment
• Optic fiber network
• Adjusting the LCD Display