DAC7565 - 12-Bit, Quad, Ultra-Low Glitch, Voltage Output DAC w/2.5V, 2ppm/°C Int Ref

DAC7565是TI德州仪器公司的一款精密DAC(=<10MSPS)产品，DAC7565是12-Bit, Quad, Ultra-Low Glitch, Voltage Output DAC w/2.5V, 2ppm/°C Int Ref，本站介绍了DAC7565的封装应用图解、特点和优点、功能等，并给出了与DAC7565相关的TI元器件型号供参考。

DAC7565 - 12-Bit, Quad, Ultra-Low Glitch, Voltage Output DAC w/2.5V, 2ppm/°C Int Ref - 精密DAC(=<10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC7565 is a low-power, voltage-output, four-channel, 12-bit digital-to-analog converter (DAC). The device includes a 2.5V, 2ppm/°C internal reference (enabled by default), giving a full-scale output voltage range of 2.5V. The internal reference has an initial accuracy of 0.02% and can source up to 20mA at the VREFH/VREFOUT pin. The device is monotonic, provides very good linearity, and minimizes undesired code-to-code transient voltages (glitch). The DAC7565 uses a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.

The DAC7565 incorporates a power-on-reset circuit that ensures the DAC output powers up at either zero-scale or mid-scale until a valid code is written to the device. The device contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 1.3µA at 5V. Power consumption is 2.9mW at 3V, reducing to 1.5µW in power-down mode. The low power consumption, internal reference, and small footprint make this device ideal for portable, battery-operated equipment.

The DAC7565 is drop-in and functionally compatible with the DAC8165 and DAC8565, and functionally compatible with the DAC7564, DAC8164 and DAC8564. All these devices are available in a TSSOP-16 package.

产品特性

Relative Accuracy: 0.5LSB
Glitch Energy: 0.15nV-s
Internal Reference:
- 2.5V Reference Voltage (enabled by default)
- 0.004% Initial Accuracy (typ)
- 2ppm/°C Temperature Drift (typ)
- 5ppm/°C Temperature Drift (max)
- 20mA Sink/Source Capability
Power-On Reset to Zero-Scale or Mid-Scale
Asynchronous Clear to Zero-Scale or Mid-Scale
Ultra-Low Power Operation: 1mA at 5V
Wide Power-Supply Range: +2.7V to +5.5V
12-Bit Monotonic Over Temperature Range
Settling Time: 10µs to ±0.024% Full-Scale Range (FSR)
Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
1.8V to 5.5V Logic Compatibility
Temperature Range: –40°C to +105°C

APPLICATIONS

Portable Instrumentation
Closed-Loop Servo-Control
Process Control, PLCs
Data Acquisition Systems
Programmable Attenuation
PC Peripherals

SPI, QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor. All other trademarks are the property of their respective owners.

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