TLV5631IPWR

8通道， 12位/ 10位/ 8位， 2.7 V至5.5 V的低功耗数字 - 模拟ONVERTERS具有掉电内部参考 8-CHANNEL, 12-/10-/8-BIT, 2.7-V TO 5.5-V LOW POWER DIGITAL-TO-ANALOG ONVERTERS WITH POWER DOWN AND INTERNAL REFERENCE

DESCRIPON

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.

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