AD5675 Datasheet, PDF (1/27 Pages) Analog Devices – Base station power amplifiers

Data Sheet
FEATURES
High performance
High relative accuracy (INL): ±3 LSB maximum at 16 bits
Total unadjusted error (TUE): ±0.14% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.06% of FSR maximum
Wide operating ranges
−40°C to +125°C temperature range
2.7 V to 5.5 V power supply
Easy implementation
User selectable gain of 1 or 2 (GAIN pin/bit)
1.8 V logic compatibility
I²C-compatible serial interface
Robust 2 kV HBM and 1.5 kV FICDM ESD rating
20-lead TSSOP and LFCSP RoHS-compliant packages
APPLICATIONS
Optical transceivers
Base station power amplifiers
Process control (PLC input/output cards)
Industrial automation
Data acquisition systems
Octal, 16-Bit nanoDAC+
with I²C Interface
AD5675
GENERAL DESCRIPTION
The AD5675 is a low power, octal, 16-bit buffered voltageoutput
digital-to-analog converter (DAC). The device includes a gain
select pin, giving a full-scale output of VREF (gain = 1) or 2 ×
VREF (gain = 2). The device operates from a single 2.7 V to 5.5 V
supply and is guaranteed monotonic by design. The AD5675 is
available in 20-lead TSSOP and LFCSP packages. The power-on
reset circuit and a RSTSEL pin ensure that the output DACs power
up to zero scale or midscale and remain there untila valid write
takes place. The AD5675 contains a power-down mode, reducing
the current consumption to 1 µA typical while in power-down
mode. The AD5675 uses a versatile 2-wire serial interface that
operates at clock rates up to 400 kHz, and includes a VLOGIC pin
intended for 1.8 V to 5.5 V logic.
Table 1. Octal nanoDAC+® Devices
Interface
Reference
16-Bit
SPI
Internal
AD5676R
External
AD5676
I²C
Internal
AD5675R
12-Bit
AD5672R
Not applicable
AD5671R
FUNCTIONAL BLOCK DIAGRAM
V_LOGIC
V_DD
V_REF
AD5675
SCL
SDA
A1
A0
LDAC
RESET
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
INPUT
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
DAC
REGISTER
2.5V
REF
STRING
DAC 0
BUFFER
STRING
DAC 1
BUFFER
STRING
DAC 2
BUFFER
STRING
DAC 3
BUFFER
STRING
DAC 4
BUFFER
STRING
DAC 5
BUFFER
STRING
DAC 6
BUFFER
STRING
DAC 7
BUFFER
V_OUT0
V_OUT1
V_OUT2
V_OUT3
V_OUT4
V_OUT5
V_OUT6
V_OUT7
POWER-ON
RESET
GAIN POWER-DOWN
×1/×2
LOGIC
RSTSEL
Figure 1.
GAIN
GND
Rev. B
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