DAC8551-Q1 Datasheet, PDF (1/28 Pages) Texas Instruments – Automotive 16-Bit, Ultralow-Glitch, Voltage-Output DAC

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DAC8551-Q1
SLASEB8A – FEBRUARY 2016 – REVISED MARCH 2016
DAC8551-Q1 Automotive 16-Bit, Ultralow-Glitch, Voltage-Output DAC
1 Features
•1 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: 16 LSB INL
• Ultralow Glitch Impulse: 0.1 nV-s
• Settling Time: 8 μs to ±0.003% FSR
• Power Supply: 3.2 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
2 Applications
• Automotive Radar
• Automotive Sensors
3 Description
The DAC8551-Q1 is a small, low-power, voltage-
output, 16-bit digital-to-analog converter (DAC)
qualified for automotive applications. The DAC8551-
Q1 provides good linearity, and minimizes undesired
code-to-code transient voltages. The DAC8551-Q1
device uses 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 DAC8551-Q1 requires an external reference
voltage to set its output range. The DAC8551-Q1
incorporates 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 DAC8551-
Q1 contains a power-down feature, accessed over
the serial interface, that reduces the current
consumption of the device to 800 nA at 5 V.
The DAC8551-Q1 power consumption is only 800 µW
at 5 V, reducing to less than 4 μW in power-down
mode. The DAC8551-Q1 is available in a VSSOP-8
package.
Table 1. Device Information⁽¹⁾
PART NUMBER
PACKAGE
DAC8551-Q1
VSSOP (8)
BODY SIZE (NOM)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
DAC8551-Q1 Functional Block Diagram
V_DD
V_FB
V_REF
Ref (+)
16-Bit DAC
V_OUT
SYNC
SCLK
D_IN
16
DAC Register
16
Shift Register
PWD Control
Resistor
Network
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.