2.7 V to 5.5 V, 250 µA, Rail-to-Rail Output
16-Bit nanoDACTM D/A in a SOT-23
Preliminary Technical Data
AD5662
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Low power (250 µA @ 5 V) single 16-bit nanoDACTM
True 12-bit accuracy guaranteed
Tiny 8-lead SOT-23/MSOP package
Power-down to 200 nA @ 5 V, 50 nA @ 3 V
Power-on-reset to zero/midscale
2.7 V to 5.5 V power supply
V
V
REF
DD
GND
POWER-ON
RESET
AD5662
V
FB
REF(+)
16-BIT
DAC
DAC
REGISTER
OUTPUT
BUFFER
V
OUT
Guaranteed 16-bit monotonic by design
3 power-down functions
Serial interface with Schmitt-triggered inputs
Rail-to-rail operation
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
RESISTOR
NETWORK
SYNC interrupt facility
APPLICATIONS
SYNC SCLK DIN
Process control
Data acquisition systems
Figure 1.
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
GENERAL DESCRIPTION
The AD5662 parts are a member of the nanoDACTM family of
devices. They are low power, single, 16-bit buffered voltage-out
DACs. All devices operate from a single 2.7 V to 5.5 V, and are
guaranteed monotonic by design.
The AD5662 is designed with new technology, and is the next
generation to the AD53xx family.
PRODUCT HIGHLIGHTS
1. 16-bit DAC; true 12-bit accuracy guaranteed.
The AD5662 requires an external reference voltage to set the
output range of the DAC. The part incorporates a power-on-
reset circuit that ensures the DAC output powers up to 0 V
(AD5662x-1) or midscale (AD5662x-2), and remains there until
a valid write takes place. The part contains a power-down
feature that reduces the current consumption of the device to
200 nA at 5 V, and provides software selectable output loads
while in power-down mode.
2. Available in 8-lead SOT-23 and 8-lead MSOP package.
3. Power-on-reset to zero or midscale.
4. Low power. Operates with 2.7 V to 5.5 V supply. Typically
consumes 0.35 mW at 3 V and 0.7 mW at 5 V, making it
ideal for battery-powered applications.
5. Power-down capability. When powered down, the DAC
typically consumes 50 nA at 3 V and 200 nA at 5 V.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery-operated equipment.
The power consumption is 0.7 mW at 5 V, reducing to 1 µW in
power-down mode.
6. 10 µs settling time.
RELATED DEVICES
Part No.
Description
The AD5662’s on-chip precision output amplifier allows rail-to-
rail output swing to be achieved. The AD5662 utilizes a versatile
3-wire serial interface that operates at clock rates up to 30 MHz,
and is compatible with standard SPI™, QSPI™, MICROWIRE™,
and DSP interface standards.
AD5620/AD5640/AD5660
3 V/5 V 12-/14-/16-bit DAC with
internal ref in Sot-23
Rev. PrA
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