DAC6551-Q1 Texas instruments

DAC6551-Q1

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DAC6551-Q1

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Описание

The DAC8551-Q1 and DAC6551-Q1 are small, low-power, voltage-output, 16- and 12-bit digital-to-analog converters (DACs) qualified for automotive applications. The DACx551-Q1 devices provide good linearity and minimize undesired code-to-code transient voltages. The devices use a versatile 3-wire serial interface that operates at clock rates to 30 MHz and is compatible with standard SPI, QSPI, Microwire, and digital signal-processor (DSP) interfaces. The DACx551-Q1 devices require an external reference voltage to set the output range. The devices incorporate a power-on-reset circuit that ensures the DAC output powers up at 0 V and remains there until a valid write to the device takes place. The devices contain a power-down feature, accessed over the serial interface, that reduces the current consumption to 800 nA at 5 V. The DACx551-Q1 devices power consumption is only 800 µW at 5 V, reducing to less than 4 µW in power-down mode. The DACx551-Q1 devices are available in a VSSOP-8 package.

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
Relative Accuracy:
- DAC8551-Q1 (16-Bit): 4 LSB INL
- DAC6551-Q1 (12-Bit): 0.3 LSB INL
Ultralow Glitch Impulse: 0.1 nV-s
Settling Time: 8 µs to ±0.003% FSR
Power Supply: 3 V to 5.5 V
Power-On Reset to Zero Scale
MicroPower Operation: 160 µA at 5 V
Low-Power Serial Interface With Schmitt-Triggered Inputs
On-Chip Output Buffer Amplifier With Rail-to-Rail Operation
Power-Down Capability
Binary Input
SYNC Interrupt Facility
Available in a Tiny VSSOP-8 Package

Resolution (Bits)	12
Number of DAC channels	1
Interface type	SPI
Output type	Buffered Voltage
Settling time (µs)	8
Features	Low Power
Reference type	Ext
Architecture	String
Rating	Automotive
Output range (max) (mA/V)	5.5
Output range (min) (mA/V)	0
Sample/update rate (Msps)	0.5
Power consumption (typ) (mW)	0.8
Operating temperature range (°C)	-40 to 125