TLV5638 12-Bit, 1 or 3.5 us DAC Serial Input, Dual DAC, Pgrmable Int. Ref., Settling Time, Pwr Consumption | TI.com

TLV5638 (ACTIVE)

12-Bit, 1 or 3.5 us DAC Serial Input, Dual DAC, Pgrmable Int. Ref., Settling Time, Pwr Consumption

 

Description

The TLV5638 is a dual 12-bit voltage output DAC with a flexible 3-wire serial interface. The serial interface allows glueless interface to TMS320 and SPITM, QSPITM, and MicrowireTM serial ports. It is programmed with a 16-bit serial string containing 4 control and 12 data bits.

The resistor string output voltage is buffered by a x2 gain rail-to-rail output buffer. The buffer features a Class AB output stage to improve stability and reduce settling time. The programmable settling time of the DAC allows the designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage reference, the TLV5638 simplifies overall system design.

Because of its ability to source up to 1 mA, the reference can also be used as a system reference. Implemented with a CMOS process, the device is designed for single supply operation from 2.7 V to 5.5 V. It is available in an 8-pin SOIC package to reduce board space in standard commercial, industrial, and automotive temperature ranges. It is also available in JG and FK packages in the military temperature range.

Features

  • Dual 12-Bit Voltage Output DAC
  • Programmable Internal Reference
  • Programmable Settling Time:
    • 1 µs in Fast Mode,
    • 3.5 µs in Slow Mode
  • Compatible With TMS320 and SPITM Serial Ports
  • Differential Nonlinearity <0.5 LSB Typ
  • Monotonic Over Temperature
  • Applications
    • Digital Servo Control Loops
    • Digital Offset and Gain Adjustment
    • Industrial Process Control
    • Machine and Motion Control Devices
    • Mass Storage Devices

SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corporation.

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Parametrics Compare all products in Precision DACs (<=10MSPS)

 
Resolution (Bits)
Architecture
DAC channels
Interface
Output range (Max) (mA/V)
Output range (Min) (mA/V)
Settling Time (µs)
Output type
Reference: type
Rating
Operating temperature range (C)
Features
TLV5638 TLC5618AM TLV5616 TLV5618A TLV5636
12     12     12     12     12    
String     String     String     String     String    
2     2     1     2     1    
SPI     SPI     SPI     SPI     SPI    
5.1     5.1     5.1     5.1     5.1    
0     0     0     0     0    
1     2.5     3     2.5     1    
Buffered Voltage     Buffered Voltage     Buffered Voltage     Buffered Voltage     Buffered Voltage    
Ext
Int    
Ext     Ext     Ext     Ext
Int    
Catalog     Military     Catalog     Catalog     Catalog    
-40 to 125
-40 to 85
0 to 70    
-55 to 125     -40 to 85
0 to 70    
-40 to 125
-40 to 85
0 to 70    
-40 to 85
0 to 70    
   
   
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