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AD5622 Datasheet

8-/10-/12-Bit nanoDACs

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Data Sheet
2.7 V to 5.5 V, <100 μA, 8-/10-/12-Bit nanoDACs with
I2C Compatible Interface in LFCSP and SC70
AD5602/AD5612/AD5622
FEATURES
Single 8-, 10-, 12-bit DACs, 2 LSB INL
6-lead LFCSP and SC70 packages
Micropower operation: 100 μA maximum at 5 V
Power down to <150 nA at 3 V
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to 0 V with brownout detection
3 power-down functions
I2C compatible serial interface supports standard (100 kHz),
fast (400 kHz), and high speed (3.4 MHz) modes
On-chip output buffer amplifier, rail-to-rail operation
Qualified for automotive applications
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
FUNCTIONAL BLOCK DIAGRAM
VDD GND
POWER-ON
RESET
AD5602/AD5612/AD5622
DAC
REGISTER
REF(+)
8-/10-/12-BIT
DAC
OUTPUT
BUFFER
VOUT
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
ADDR SCL SDA
Figure 1.
Table 1. Related Devices
Device No.
AD5601/AD5611/AD5621
Description
2.7 V to 5.5 V, <100 μA, 8-, 10-, 12-bit
nanoDAC with SPI interface in tiny
LFCSP and SC70 packages
GENERAL DESCRIPTION
The AD5602/AD5612/AD5622, members of the nanoDAC®
family, are single 8-, 10-, 12-bit buffered voltage-out digital-to-
analog converters (DAC) that operate from a single 2.7 V to
5.5 V supply, consuming <100 μA at 5 V. These DACs come in
tiny LFCSP and SC70 packages. Each DAC contains an on-chip
precision output amplifier that allows rail-to-rail output swing
to be achieved.
The AD5602/AD5612/AD5622 use a 2-wire I2C compatible
serial interface that operates in standard (100 kHz), fast (400 kHz),
and high speed (3.4 MHz) modes.
The references for AD5602/AD5612/AD5622 derive from the
power supply inputs to give the widest dynamic output range. Each
device incorporates a power-on reset circuit that ensures the DAC
output powers up to 0 V and remains there until a valid write takes
place to the device. The devices contain a power-down feature
that reduces the current consumption of the devices to <150 nA
at 3 V and provides software selectable output loads while in
power-down mode. The devices are put into power-down mode
over the serial interface. The low power consumption of the
AD5602/AD5612/AD5622 in normal operation makes them
ideally suited for use in portable, battery operated equipment.
The typical power consumption is 0.4 mW at 5 V.
Rev. D
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
PRODUCT HIGHLIGHTS
1. Available in 6-lead LFCSP and SC70 packages.
2. Maximum 100 μA power consumption, single-supply
operation. These devices operate from a single 2.7 V to 5.5 V
supply, typically consuming 0.2 mW at 3 V and 0.4 mW at
5 V, making them ideal for battery-powered applications.
3. The on-chip output buffer amplifier allows the output of
the DAC to swing rail-to-rail with a typical slew rate of
0.5 V/μs.
4. Reference derived from the power supply.
5. Standard, fast, and high speed mode I2C interface.
6. Designed for very low power consumption.
7. Power-down capability. When powered down, the DAC
typically consumes <150 nA at 3 V.
8. Power-on reset and brownout detection.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2005–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
Analog Devices
Analog Devices



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