DAC8562 Datasheet, PDF (1/56 Pages) Analog Devices – +5 Volt, Parallel Input Complete 12-Bit DAC

DAC8562, DAC8563
DAC8162, DAC8163
DAC7562, DAC7563
www.ti.com
SLAS719C – AUGUST 2010 – REVISED JUNE 2011
DUAL 16-/14-/12-BIT, ULTRALOW-GLITCH, LOW-POWER, BUFFERED, VOLTAGE-OUTPUT
DAC WITH 2.5-V, 4-PPM/°C INTERNAL REFERENCE IN SMALL 3-MM × 3-MM QFN
Check for Samples: DAC8562, DAC8563, DAC8162, DAC8163, DAC7562, DAC7563
FEATURES
1
•23 Relative Accuracy:
– DAC856x (16-Bit): 4 LSB INL
– DAC816x (14-Bit): 1 LSB INL
– DAC756x (12-Bit): 0.3 LSB INL
• Glitch Energy: 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/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: QFN-10 (3x3 mm), MSOP-10
• Temperature Range: –40°C to 125°C
APPLICATIONS
• Portable Instrumentation
• Bipolar Outputs (reference design)
• PLC Analog Output Module (reference design)
• Closed-Loop Servo Control
• Voltage Controlled Oscillator Tuning
• Data Acquisition Systems
• Programmable Gain and Offset Adjustment
DESCRIPTION
The DAC856x, DAC816x, and DAC756x 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 at zero scale until
a valid code is written to the device, whereas the
DACxx63s similarly power up at mid-scale. These
devices contain a power-down feature that reduces
current consumption to typically 10 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
DACxx63s. The entire family is available in MSOP-10
and QFN-10 packages.
Table 1. RELATED DEVICES
Reset to zero
Reset to mid-scale
16-BIT
DAC8562
DAC8563
14-BIT
DAC8162
DAC8163
12-BIT
DAC7562
DAC7563
D_IN
SCLK
SYNC
GND
AV_DD
Input Control Logic
DAC756x (12-Bit)
DAC816x (14-Bit)
DAC856x (16-Bit)
LDAC
CLR
V_REFIN/V_REFOUT
Buffer Control
Register Control
Control Logic
2.5-V
Reference
Power-
Down
Control
Logic
Data Buffer B
DAC Register B
DAC
V_OUTB
Data Buffer A
DAC Register A
DAC
V_OUTA
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI, QSPI are trademarks of Motorola, Inc.
2
Microwire is a trademark of National Semiconductor.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2011, Texas Instruments Incorporated