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
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FEATURES
DESCRIPTION
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Relative Accuracy:
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).
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DAC5578 (8 bit): 0.25LSB INL
DAC6578 (10 bit): 0.5LSB INL
DAC7578 (12 bit): 1LSB INL
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Glitch Energy: 0.15nV-s
Power-On Reset to Zero Scale or Midscale
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.
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Devices in the TSSOP Package Reset to
Zero Scale
–
Devices in the QFN Package Reset to Zero
Scale or Midscale
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.
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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
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Portable Instrumentation
Closed-Loop Servo Control
Process Control
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.
Data Acquisition Systems
AVDD
VREFIN
DACx578
8-/10-/12-Bit
DAC
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
VOUT
H
G
F
DAC Register H
DAC Register G
DAC Register F
DAC Register E
DAC Register D
DAC Register C
DAC Register B
DAC Register A
Data Buffer H
Data Buffer G
Data Buffer F
Data Buffer E
Data Buffer D
Data Buffer C
Data Buffer B
Data Buffer A
RELATED DEVICES
8-BIT
10-BIT
12-BIT
8-/10-/12-Bit
DAC
Pin- and Function-Compatible
(w/internal reference)
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—
DAC7678
8-/10-/12-Bit
DAC
Pin- and Function-Compatible
DAC5578 DAC6578 DAC7578
8-/10-/12-Bit
DAC
E
D
C
B
A
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
8-/10-/12-Bit
DAC
SCL
SDA
Input Control Logic
Buffer Control
Register Control
Power-Down
Control Logic
Control Logic
ADDR0
ADDR1
LDAC
RSTSEL
CLR
GND
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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.
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I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
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