描述 Description

The TLV5630, TLV5631, and TLV5632 are pin-compatible,eight-channel, 12-/10-/8-bit voltage output DACs each with a flexible serial interface. The serial interface allows glueless interface to TMS320 and SPI, QSPI, and Microwire serial ports. It is programmed with a 16-bit serial string containing 4 control and 12 data bits.Additional features are a power-down mode, an LDAC input for simultaneous update of all eight DAC outputs, and a data output which can be used to cascade multiple devices, and an internal programmable band-gap reference.The resistor string output voltage is buffered by a rail-to-rail output amplifier with a programmable settling time to allow the designer to optimize speed vs power dissipation. The buffered, high-impedance reference input can be connected to the supply voltage.Implemented with a CMOS process, the DACs are designed for single-supply operation from 2.7 V to 5.5 V, and can operate on two separate analog and digital power supplies. The devices are available in 20-pin SOIC and TSSOP packages.

特性 Features

? Eight Voltage Output DACs in One Package
? TLV5630 . . .12-Bit
? TLV5631 . . .10-Bit
? TLV5632 . . .8-Bit
? 1 μs in Fast Mode
? 3 μs in Slow Mode

? Programmable Settling Time vs Power Consumption
? 1 μs in Fast Mode
? 3 μs in Slow Mode
? 18 mW in Slow Mode at 3 V
? 48 mW in Fast Mode at 3 V

? Compatible With TMS320 and SPI Serial Ports
? Monotonic Over Temperature
? Low Power Consumption:
? 18 mW in Slow Mode at 3 V
? 48 mW in Fast Mode at 3 V

? Power-Down Mode
? Internal Reference
? Data Output for Daisy-Chaining
? APPLICATIONS
? Digital Servo Control Loops
? Digital Offset and Gain Adjustment
? Industrial Process Control
? Machine and Motion Control Devices
? Mass Storage Devices