DAC7562T Datasheet, PDF (1/60 Pages) Texas Instruments – Internal Reference

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
DAC7562T, DAC7563T, DAC8162T
DAC8163T, DAC8562T, DAC8563T
SLASE61A – SEPTEMBER 2015 – REVISED OCTOBER 2015
DACxx6xT Dual 16-, 14-, 12-Bit, Low-Power, Voltage-Output DACs With 2.5-V, 4-PPM/°C
Internal Reference, and 5-V TTL I/O
1 Features
•1 Relative Accuracy: 4 LSB INL at 16 Bits
• Low Glitch Impulse: 0.1 nV-s
• Bidirectional Reference Pin: Input or 2.5-V Output
– 4-ppm/°C Temperature Drift (Typ)
• Power-On Reset to Zero Scale or Mid-Scale
• Low-Power: 4 mW at 5-V AVDD
• Wide Power-Supply Range: 2.7 V to 5.5 V
• 50-MHz SPI With Schmitt-Triggered Inputs
• LDAC and CLR Functions
• Output Buffer With Rail-to-Rail Operation
• Pin-to-Pin Compatible With DAC8562 Family
• 5-V TTL I/O Enabled
• Packages: WSON-10 (3 mm × 3 mm), VSSOP-10
• Temperature Range: –40°C to 125°C
2 Applications
• Portable Instrumentation
• PLC Analog Output Module
• Bipolar Outputs (Section 9.2.2)
• Closed-Loop Servo Control
• Voltage Controlled Oscillator Tuning
• Data Acquisition Systems
• Programmable Gain and Offset Adjustment
3 Description
The DAC856xT, DAC816xT, and DAC756xT devices
are low-power, voltage-output, dual-channel, 16-, 14-,
and 12-bit digital-to-analog converters (DACs),
respectively. These devices include a 2.5-V,
4-ppm/°C internal reference, giving a full-scale output
voltage range of 2.5 V or 5 V. The internal reference
has an initial accuracy of ±5 mV and can source or
sink up to 20 mA at the V_REFIN/V_REFOUT pin.
These devices are monotonic, providing excellent
linearity and minimizing undesired code-to-code
transient voltages (glitch). They use a versatile three-
wire serial interface that operates at clock rates up to
50 MHz. The interface is compatible with standard
SPI™, QSPI™, Microwire, and digital signal
processor (DSP) interfaces. The DACxx62T devices
incorporate a power-on-reset circuit that ensures the
DAC output powers up and remains at zero scale
until a valid code is written to the device, whereas the
DACxx63T devices similarly power up at mid-scale.
These devices contain a power-down feature that
reduces current consumption to typically 550 nA at
5 V. The low power consumption, internal reference,
and small footprint make these devices ideal for
portable, battery-operated equipment.
The DACxx62T devices are drop-in and function-
compatible with each other, as are the DACxx63T
devices. The entire family is available in VSSOP-10
and WSON-10 packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC8562T
DAC8162T
DAC7562T
VSSOP (10),
WSON (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
GND
AVDD
Simplified Block Diagram
LDAC
CLR
V_REFIN/V_REFOUT
D_IN
SCLK
SYNC
Input Control Logic
Buffer Control
Register Control
Control Logic
2.5-V
Reference
Power-
Down
Control
Logic
Data Buffer B
DAC Register B
DAC
V_OUTB
DAC756xT (12-Bit)
DAC816xT (14-Bit)
DAC856xT (16-Bit)
Data Buffer A
DAC Register A
DAC
V_OUTA
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.