Datasheet

AD5623R/AD5643R/AD5663R Data Sheet
Rev. E | Page 6 of 32
B Grade
1
Parameter Min Typ Max Unit Conditions/Comments
LOGIC INPUTS
3
Input Current ±2 µA All digital inputs
V
INL
, Input Low Voltage 0.8 V V
DD
= 3 V
V
INH
, Input High Voltage 2 V V
DD
= 3 V
Pin Capacitance 3 pF DIN, SCLK, and
SYNC
19 pF
LDAC
and
CLR
POWER REQUIREMENTS
V
DD
2.7 3.6 V
I
DD
(Normal Mode)
4
V
IH
= V
DD
and V
IL
= GND
V
DD
= 2.7 V to 3.6 V 200 425 µA Internal reference off
V
DD
= 2.7 V to 3.6 V 800 900 µA Internal reference on
I
DD
(All Power-Down Modes)
5
V
DD
= 2.7 V to 3.6 V 0.2 1 µA V
IH
= V
DD
and V
IL
= GND
1
Temperature range: B grade = −40°C to +105°C.
2
Linearity calculated using a reduced code range: AD5663R (Code 512 to Code 65,024), AD5643R (Code 128 to Code 16,256), and AD5623R (Code 32 to Code 4064).
Output unloaded.
3
Guaranteed by design and characterization, not production tested.
4
Interface inactive. All DACs active. DAC outputs unloaded.
5
Both DACs powered down.
AC CHARACTERISTICS
V
DD
= 2.7 V to 5.5 V; R
L
= 2 kΩ to GND; C
L
= 200 pF to GND; V
REFIN
= V
DD
; all specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 4.
Parameter
1, 2
Min Typ Max Unit Conditions/Comments
3
Output Voltage Settling Time
AD5623R 3 4.5 µs ¼ to ¾ scale settling to ±0.5 LSB
AD5643R 3.5 5 µs ¼ to ¾ scale settling to ±0.5 LSB
AD5663R 4 7 µs ¼ to ¾ scale settling to ±2 LSB
Slew Rate 1.8 V/µs
Digital-to-Analog Glitch Impulse 10 nV-s 1 LSB change around major carry
Digital Feedthrough 0.1 nV-s
Reference Feedthrough −90 dB V
REF
= 2 V ± 0.1 V p-p, frequency 10 Hz to 20 MHz
Digital Crosstalk
0.1
nV-s
Analog Crosstalk 1 nV-s External reference
4 nV-s Internal reference
DAC-to-DAC Crosstalk 1 nV-s External reference
4 nV-s Internal reference
Multiplying Bandwidth
340
kHz
V
REF
= 2 V ± 0.1 V p-p
Total Harmonic Distortion −80 dB V
REF
= 2 V ± 0.1 V p-p, frequency = 10 kHz
Output Noise Spectral Density 120 nV/√Hz DAC code = midscale, 1 kHz
100 nV/√Hz DAC code = midscale, 10 kHz
Output Noise 15 μV p-p 0.1 Hz to 10 Hz
1
Guaranteed by design and characterization, not production tested.
2
See the Terminology section.
3
Temperature range: A, B grade = −40°C to +105°C, typical at +25°C.