2.7 V to 5.5 V, <100 µA, 8/10/12Bit
nanoDACTM D/A, SPI Interface, SC70 Package
Preliminary Technical Data
AD5601/AD5611/AD5621
FEATURES
FUNCTIONAL BLOCK DIAGRAM
6-lead SC70 package
Power-down to <100 nA @ 3 V
Micropower operation: max 100 µA @ 5 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
Low power serial interface with Schmitt-triggered inputs
On-chip output buffer amplifier, rail-to-rail operation
SYNC interrupt facility
Minimised Zero Code Error
AD5601 Buffered 8-Bit Dac in SC70
B Version: 0.5 LSB INL
AD5611 Buffered 10-Bit Dac in SC70
B Version: 0.5 LSB INL, A Version: 4 LSB INL
AD5621 Buffered 12-Bit Dac in SC70
Figure 1
RELATED DEVICES
Part Number
AD5641
B Version: 1 LSB INL , A Version: 6 LSB INL
Description
2.7 V to 5.5 V, <100 µA, 14 Bit nanoDACTM D/A, tiny
SC70 Package
APPLICATIONS
Voltage Level Setting
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
GENERAL DESCRIPTION
The combination of small package and low power make these devices idea
for level setting requirements such as generating bias or control voltages in
space constrained and power sensitive applications
The AD5601/AD5611/AD5621, members of the nanoDACTM family, are
single, 8/10/12-bit buffered voltage out DAC that operates from a single 2.7
V to +5.5 V supply consuming <100 µA at 5 V, and comes in a tiny SC70
package. Its on-chip precision output amplifier allows rail-to-rail output
swing to be achieved. The AD5601/AD5611/AD5621 utilizes a versatile 3-
wire serial interface that operates at clock rates up to 30 MHz and is
compatible with SPI®, QSPI™, MICROWIRE™, and DSP interface standards.
The reference for AD5601/AD5611/AD5621 is derived from the power
supply inputs and thus gives the widest dynamic output range. The part
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
part contains a power-down feature that reduces the current consumption
of the device to <100 nA at 3 V and provides software selectable output
loads while in power-down mode. The part is put into power-down mode
over the serial interface. The low power consumption of this part in normal
operation makes it ideally suited to portable battery operated equipment.
Rev. PrB
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