X9438WV24I-2.7 INTERSIL [Intersil Corporation], X9438WV24I-2.7 Datasheet
X9438WV24I-2.7
Related parts for X9438WV24I-2.7
X9438WV24I-2.7 Summary of contents
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Data Sheet PRELIMINARY Dual Digitally Controlled Potentiometer (XDCP™) with Operational Amplifier FEATURES • Two CMOS voltage operational amplifiers • Two digitally controlled potentiometers • Can be combined or used separately • Amplifiers: —Low voltage operation —V+/V- = ±2.7V to ...
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PIN DESCRIPTIONS Host Interface Pins Serial Clock (SCL) The SCL input is used to clock data into and out of the X9438. Serial Data (SDA) SDA is a bidirectional pin used to transfer data into and out of the device. ...
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PRINCIPLES OF OPERATION The X9438 is an integrated microcircuit incorporating two resistor arrays, two operational amplifiers and their associated registers and counters; and the serial interface logic providing direct between the host and the digitally controlled potenti- ometers and operational ...
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The next four bits of the slave address are the device address. The physical device address is defined by the state of the inputs. The X9438 compares 0 3 the serial data stream with the address input ...
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Figure 3. Two-Byte Command Sequence SCL SDA Figure 4. Three-Byte Command Sequence SCL SDA The Increment/Decrement command is ...
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Figure 6. Instruction Set Read Wiper Counter Register (WCR) Read the contents of the Wiper Counter Register P S device type device instruction S T identifier addresses ...
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Figure 6. Instruction Set (continued) Transfer Data Register to Wiper Counter Register Transfer the contents of the Register pointed device type device S T identifier addresses ...
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REGISTER OPERATION Both digitally controlled potentiometers share the serial interface and share a common architecture. Each potentiometer is associated with a Wiper Counter Register (WCR), and four Data Registers. Figure 7 illustrates the control, registers, and system features of the ...
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ABSOLUTE MAXIMUM RATINGS Temperature under bias .................... -65°C to +135°C Storage temperature ......................... -65°C to +150°C Voltage on SDA, SCL or any address input with respect to V ......................... -1V to +7V SS Voltage on any V+ (referenced to V ...
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AMPLIFIER ELECTRICAL CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.) Symbol Parameter V Input offset voltage OS TC Input offset voltage temp. VOS coefficient I Input bias current B I Input offset current OS CMRR Common mode rejection ratio ...
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ENDURANCE AND DATA RETENTION Parameter Minimum endurance Data retention CAPACITANCE Symbol C Input/output capacitance (SDA) I/O C Input capacitance (A0, A1, A2, A3, and SCL Potentiometer capacitance POWER-UP TIMING AND SEQUENCE ...
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TIMING DIAGRAMS START and STOP Timing (START) SCL t SU:STA SDA Input Timing t CYC SCL SDA t SU:DAT Output Timing SCL SDA DCP Timing (for All Load Instructions) SCL SDA VWx 12 X9438 ...
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DCP Timing (for Increment/Decrement Instruction) SCL SDA Wiper Register Address VWx Write Protect and Device Address Pins Timing SCL SDA WP A0 X9438 Inc/Dec (START) (STOP) ... (Any Instruction) ... ... t t SU:WPA HD:WPA Inc/Dec ...
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AC TIMING Symbol f Clock frequency SCL t Clock cycle time CYC t Clock high time HIGH t Clock low time LOW t Start setup time SU:STA t Start hold time HD:STA t Stop setup time SU:STO t SDA data ...
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BASIC APPLICATIONS Converter – Absolute Value Amplifier with Gain – ...
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PACKAGING INFORMATION 24-Lead Plastic Small Outline Gull Wing Package Type S Pin 1 Index Pin 1 (4X) 7° 0.050 (1.27) 0.010 (0.25) 0.020 (0.50) 0° - 8° 0.015 (0.40) 0.050 (1.27) NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) ...
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PACKAGING INFORMATION .026 (.65) BSC .303 (7.70) .311 (7.90) .0075 (.19) .0118 (.30 8° .020 (.50) .030 (.75) Detail A (20X) See Detail “A” NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 17 X9438 24-Lead Plastic, TSSOP ...
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Ordering Information X9438 Device All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make ...