DAC5578_10 Datasheet, PDF (1/55 Pages) Texas Instruments – 8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface Digital-to-Analog Converters

DAC5578
DAC6578
DAC7578
www.ti.com
SBAS496A – MARCH 2010 – REVISED AUGUST 2010
8-/10-/12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface
Digital-to-Analog Converters
Check for Samples: DAC5578, DAC6578, DAC7578
FEATURES
1
•23 Relative Accuracy:
– DAC5578 (8 bit): 0.25LSB INL
– DAC6578 (10 bit): 0.5LSB INL
– DAC7578 (12 bit): 1LSB INL
• Glitch Energy: 0.15nV-s
• Power-On Reset to Zero Scale or Midscale
– Devices in the TSSOP Package Reset to
Zero Scale
– Devices in the QFN Package Reset to Zero
Scale or Midscale
• Ultra-Low Power Operation: 0.13mA/ch at 5V
• Wide Power-Supply Range: +2.7V to +5.5V
• 2-Wire Serial Interface ( I²C™ compatible)
• Temperature Range: –40°C to +125°C
APPLICATIONS
• Portable Instrumentation
• Closed-Loop Servo Control
• Process Control
• Data Acquisition Systems
DACx578
AV_DD
Data Buffer H
Data Buffer G
DAC Register H
DAC Register G
Data Buffer F
DAC Register F
Data Buffer E
DAC Register E
Data Buffer D
DAC Register D
Data Buffer C
DAC Register C
Data Buffer B
Data Buffer A
DAC Register B
DAC Register A
SCL
SDA
Input Control Logic
Buffer Control
Register Control
Control Logic
ADDR0
ADDR1
LDAC RSTSEL CLR
V_REFIN
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
V_OUTH
V_OUTG
V_OUTF
V_OUTE
V_OUTD
V_OUTC
V_OUTB
V_OUTA
GND
Power-Down
Control Logic
DESCRIPTION
The DAC5578 (8 bit), DAC6578 (10 bit), and
DAC7578 (12 bit) are low-power, voltage-output, octal
channel, digital-to-analog converters (DACs). The
devices are monolithic, provide good linearity,and
minimize undesired code-to-code transient voltages
(glitch).
The devices use a versatile, 2-wire serial interface
that is I²C-compatible and operates at clock rates of
up to 3.4MHz. Multiple devices can share the same
bus.
The devices incorporate a power-on-reset (POR)
circuit that ensures the DAC output powers up to
zero-scale or midscale until a valid code is written to
the device. These devices also contain a power-down
feature, accessed through the serial interface, that
reduces the current consumption of the devices to
typically 0.42mA at 5V. Power consumption is typically
2.32mW at 3V, reducing to 0.68mW in power-down
mode. The low power consumption and small
footprint make these devices ideal for portable,
battery-operated equipment.
The DAC5578, DAC6578, and DAC7578 are drop-in
and functionally-compatible with the DAC7678. All
devices are available in a 4x4, QFN-24 package and
a TSSOP-16 package.
RELATED DEVICES
Pin- and Function-Compatible
(w/internal reference)
Pin- and Function-Compatible
8-BIT
10-BIT
12-BIT
—
—
DAC7678
DAC5578 DAC6578 DAC7578
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.
I²C is a trademark of NXP Semiconductors.
2
All other trademarks are the property of their respective owners.
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, Texas Instruments Incorporated