2.5 V to 5.5 V, 400 μA, Quad Voltage Output,
8-/10-/12-Bit DACs in 16-Lead TSSOP
Data Sheet
AD5307/AD5317/AD5327
FEATURES
GENERAL DESCRIPTION
AD5307: 4 buffered 8-bit DACs in 16-lead TSSOP
A version: 1 LSB INL; B version: 0.625 LSB INL
AD5317: 4 buffered 10-bit DACs in 16-lead TSSOP
A version: 4 LSB INL; B version: 2.5 LSB INL
AD5327: 4 buffered 12-bit DACs in 16-lead TSSOP
A version: 16 LSB INL; B version: 10 LSB INL
Low power operation: 400 μA @ 3 V, 500 μA @ 5 V
2.5 V to 5.5 V power supply
The AD5307/AD5317/AD53271 are quad 8-,10-,12-bit buffered
voltage-output DACs in 16-lead TSSOP that operate from single
2.5 V to 5.5 V supplies and consume 400 μA at 3 V. Their on-
chip output amplifiers allow the outputs to swing rail-to-rail with
a slew rate of 0.7 V/μs. The AD5307/AD5317/AD5327 utilize
versatile 3-wire serial interfaces that operate at clock rates up to
30 MHz; these parts are compatible with standard SPI, QSPI,
MICROWIRE, and DSP interface standards.
Guaranteed monotonic by design over all codes
LDAC
Power down to 90 nA @ 3 V, 300 nA @ 5 V (
Double-buffered input logic
pin)
The references for the four DACs are derived from two reference
pins (one per DAC pair). These reference inputs can be configured
as buffered or unbuffered inputs. Each part incorporates a power-
on reset circuit, ensuring that the DAC outputs power up to 0 V
and remain there until a valid write to the device takes place.
Buffered/unbuffered reference input options
Output range: 0 V to VREF or 0 V to 2 VREF
Power-on reset to 0 V
LDAC
Simultaneous update of outputs (
CLR
pin)
CLR
Asynchronous clear facility (
pin)
There is also an asynchronous active low
DACs to 0 V. The outputs of all DACs can be updated simul-
LDAC
pin that clears all
Low power, SPI®-, QSPI™-, MICROWIRE™-, and DSP-
compatible 3-wire serial interface
SDO daisy-chaining option
On-chip rail-to-rail output buffer amplifiers
Temperature range of −40°C to +105°C
taneously using the asynchronous
input. Each part
contains a power-down feature that reduces the current
consumption of the device to 300 nA @ 5 V (90 nA @ 3 V). The
parts can also be used in daisy-chaining applications using the
SDO pin.
APPLICATIONS
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
All three parts are offered in the same pinout, allowing users to
select the amount of resolution appropriate for their application
without redesigning their circuit board.
Industrial process control
FUNCTIONAL BLOCK DIAGRAM
V
V
AB
DD
REF
GAIN-SELECT
LOGIC
AD5307/AD5317/AD5327
LDAC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
V
V
V
A
B
BUFFER
OUT
SCLK
SYNC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
BUFFER
BUFFER
BUFFER
OUT
INTERFACE
LOGIC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
C
D
OUT
DIN
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
V
OUT
SDO
POWER-ON
RESET
POWER-DOWN
LOGIC
DCEN
LDAC CLR
V
CD
PD GND
REF
Figure 1.
1 Patents pending.
Rev. D
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