DAC7562_15 Datasheet, PDF (1/60 Pages) Texas Instruments – Internal Reference

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DAC7562, DAC7563, DAC8162
DAC8163, DAC8562, DAC8563
SLAS719E – AUGUST 2010 – REVISED JUNE 2015
DACxx6x Dual 16-, 14-, 12-Bit, Low-Power, Buffered, Voltage-Output
DACs With 2.5-V, 4-PPM/°C Internal Reference
1 Features
•1 Relative Accuracy:
– DAC756x (12-Bit): 0.3 LSB INL
– DAC816x (14-Bit): 1 LSB INL
– DAC856x (16-Bit): 4 LSB INL
• Glitch Impulse: 0.1 nV-s
• Bidirectional Reference: Input or 2.5-V Output
– Output Disabled by Default
– ±5-mV Initial Accuracy (Max)
– 4-ppm°C Temperature Drift (Typ)
– 10-ppm/°C Temperature Drift (Max)
– 20-mA Sink and Source Capability
• Power-On Reset to Zero Scale or Mid-Scale
• Low-Power: 4 mW (Typ, 5-V AV_DD, Including
Internal Reference Current)
• 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
• Packages: WSON-10 (3 mm × 3 mm), VSSOP-10
• Temperature Range: –40°C to 125°C
2 Applications
• Portable Instrumentation
• PLC Analog Output Module
• Closed-Loop Servo Control
• Voltage Controlled Oscillator Tuning
• Data Acquisition Systems
• Programmable Gain and Offset Adjustment
3 Description
The DAC756x, DAC816x, and DAC856x 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 DACxx62 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
DACxx63 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 DACxx62 devices are drop-in and function-
compatible with each other, as are the DACxx63
devices. The entire family is available in MSOP-10
and SON-10 packages.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC8562
DAC8162
DAC7562
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
AV_DD
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
DAC756x (12-Bit)
DAC816x (14-Bit)
DAC856x (16-Bit)
Data Buffer B
Data Buffer A
DAC Register B
DAC Register A
DAC
DAC
V_OUTB
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.