DAC80501ZDQFR.B中文资料德州仪器数据手册PDF规格书

1 Features

• 16-bit performance: 1-LSB INL and DNL (max)

• Low glitch energy: 4 nV–s

• Wide power supply: 2.7 V to 5.5 V

• Buffered output range: 5 V, 2.5 V, or 1.25 V

• Very-low power: 1 mA at 5.5 V

• Integrated 5-ppm/°C (max), 2.5-V precision

reference

• Pin-selectable serial interface:

– 3-wire, SPI compatible up to 50-MHz

– 2-wire, I2C compatible

• Power-on-reset: Zero scale or midscale

• 1.62-V VIH with VDD = 5.5 V

• Temperature range: –40°C to +125°C

• Packages: Small 8-pin WSON and 10-pin VSSOP

2 Applications

• Oscilloscopes and digitizers

• Parametric measurement unit (PMU)

• Data acquisition (DAQ)

• Flat panel display (FPD) shorting bar pattern

generator

• Small cell base station

• Analog output module

• Process analytics (pH, gas, concentration, force

and humidity)

• Programmable dc power supply

3 Description

The 16-bit DAC80501, 14-bit DAC70501, and 12-bit

DAC60501 (DACx0501) digital-to-analog converters

(DACs) are highly accurate, low-power devices

with voltage-output. The DACx0501 are specified

monotonic by design, and offer linearity of < 1 LSB.

These devices include a 2.5-V, 5-ppm/°C internal

reference, giving full-scale output voltage ranges of

1.25 V, 2.5 V, or 5 V. The DACx0501 incorporate

a power-on-reset (POR) circuit that makes sure the

DAC output powers up at zero scale or midscale, and

remains at that scale until a valid code is written to

the device. These devices consume a low current of

1 mA, and include a power-down feature that reduces

current consumption to typically 15 μA at 5 V.

The digital interface of the DACx0501 can be

configured to SPI or I2C mode using the SPI2C pin.

In SPI mode, the DACx0501 use a versatile 3-wire

serial interface that operates at clock rates of up

to 50 MHz. In I2C mode, the DACx0501 operate in

standard mode (100Kbps), fast mode (400Kbps), and

fast mode plus (1.0Mbps).