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Quad 16-/14-/12-Bit nanoDAC+
with 2 ppm/°C Reference, I
2
C Interface
Data Sheet
AD5696R/AD5695R/AD5694R
Rev. C Document Feedback
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FEATURES
High relative accuracy (INL): ±2 LSB maximum at 16 bits
Low drift 2.5 V reference: 2 ppm/°C typical
Tiny package: 3 mm × 3 mm, 16-lead LFCSP
Total unadjusted error (TUE): ±0.1% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.1% of FSR maximum
High drive capability: 20 mA, 0.5 V from supply rails
User selectable gain of 1 or 2 (GAIN pin)
Reset to zero scale or midscale (RSTSEL pin)
1.8 V logic compatibility
Low glitch: 0.5 nV-sec
400 kHz I
2
C-compatible serial interface
Robust 3.5 kV HBM and 1.5 kV FICDM ESD rating
Low power: 3.3 mW at 3 V
2.7 V to 5.5 V power supply
−40°C to +105°C temperature range
APPLICATIONS
Optical transceivers
Base-station power amplifiers
Process control (PLC I/O cards)
Industrial automation
Data acquisition systems
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
GENERAL DESCRIPTION
The AD5696R/AD5695R/AD5694R family are low power, quad,
16-/14-/12-bit buffered voltage output DACs. The devices include
a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a
gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5
V (gain = 2). All devices operate from a single 2.7 V to 5.5 V
supply, are guaranteed monotonic by design, and exhibit less
than 0.1% FSR gain error and 1.5 mV offset error performance.
The devices are available in a 3 mm × 3 mm LFCSP and a
TSSOP package.
The AD5696R/AD5695R/AD5694R also incorporate a power-
on reset circuit and a RSTSEL pin that ensures that the DAC
outputs power up to zero scale or midscale and remain there
until a valid write takes place. Each part contains a per-channel
power-down feature that reduces the current consumption of
the device to 4 μA at 3 V while in power-down mode.
The AD5696R/AD5695R/AD5694R use a versatile 2-wire serial
interface that operates at clock rates up to 400 kHz, and
includes a V
LOGIC
pin intended for 1.8 V/3 V/5 V logic.
Table 1. Quad nanoDAC+ Devices
Interface Reference 16-Bit 14-Bit 12-Bit
SPI Internal AD5686R AD5685R AD5684R
External AD5686 AD5684
I
2
C Internal AD5696R AD5695R AD5694R
External AD5696 AD5694
PRODUCT HIGHLIGHTS
1. High Relative Accuracy (INL).
AD5696R (16-bit): ±2 LSB maximum
AD5695R (14-bit): ±1 LSB maximum
AD5694R (12-bit): ±1 LSB maximum
2. Low Drift 2.5 V On-Chip Reference.
2 ppm/°C typical temperature coefficient
5 ppm/°C maximum temperature coefficient
3. Two Package Options.
3 mm × 3 mm, 16-lead LFCSP
16-lead TSSOP
SCL
V
LOGIC
SDA
A1
A0
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
BUFFER
V
OUT
A
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
BUFFER
V
OUT
B
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
BUFFER
V
OUT
C
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
BUFFER
V
OUT
D
V
REF
GND
V
DD
2.5V
REFERENCE
POWER-
DOWN
LOGIC
POWER-ON
RESET
GAIN =
×1/×2
INTERFACE LOGIC
RSTSEL GAINLDAC RESET
AD5696R/AD5695R/AD5694R
10486-001
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