Datasheet

REV.
AD7564
–4–
Parameter A Grade Units Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time 3.5 µs typ To 0.01% of Full-Scale Range. V
REF
= 0 V. DAC Latch Alter-
nately Loaded with all 0s and all 1s.
Digital to Analog Glitch Impulse 35 nV-s typ Measured with V
IOUT2
= 0 V and V
REF
= 0 V. DAC Register Alter-
nately Loaded with all 0s and all 1s.
Multiplying Feedthrough Error –70 dB max DAC Latch Loaded with all 0s.
Output Capacitance 100 pF max All 1s Loaded to DAC
40 pF max All 0s Loaded to DAC
Digital Feedthrough 5 nV-s typ Feedthrough to Any DAC Output with FSIN HIGH and a Square
Wave Applied to SDIN and CLKIN
Total Harmonic Distortion –76 dB typ
Output Noise Spectral Density
@ 1 kHz 20 nV/√Hz typ All 1s Loaded to DAC. V
IOUT2
= 0 V; V
REF
= 0 V
(V
DD
= +3 V to +5.5 V; V
IOUT1
= V
IOUT2
= 1.23 V; AGND = 0 V. V
REF
= 1 kHz, 2.45 V p-p, sine wave biased at 1.23 V; DAC
output op amp is AD820; T
A
= T
MIN
to T
MAX
, unless otherwise noted. These characteristics are included for Design
Guidance and are not subject to test.)
Biased Mode
AC Performance Characteristics
Parameter B Grade Units Test Conditions/Comments
DYNAMIC PERFORMANCE
Output Voltage Settling Time 550 ns typ To 0.01% of Full-Scale Range. DAC Latch Alternately Loaded
with All 0s and All 1s
Digital-to-Analog Glitch Impulse 35 nV-s typ Measured with V
REF
= 0 V. DAC Register Alternately Loaded
with All 0s and All 1s
Multiplying Feedthrough Error –70 dB max V
REF
= 20 V p-p, 10 kHz Sine Wave. DAC Latch Loaded
with All 0s
Output Capacitance 60 pF max All 1s Loaded to DAC
30 pF max All 0s Loaded to DAC
Channel-to-Channel Isolation –76 dB typ Feedthrough from Any One Reference to the Others with
20 V p-p, 10 kHz Sine Wave Applied
Digital Crosstalk 5 nV-s typ Effect of All 0s to All 1s Code Transition on Nonselected DACs
Digital Feedthrough 5 nV-s typ Feedthrough to Any DAC Output with
FSIN High and Square
Wave Applied to SDIN and SCLK
Total Harmonic Distortion –83 dB typ V
REF
= 6 V rms, 1 kHz Sine Wave
Output Noise Spectral Density
@ 1 kHz 30 nV/√
Hz typ All 1s Loaded to the DAC. V
REF
= 0 V. Output Op Amp Is
ADOP07
Normal Mode
(V
DD
= +4.75 V to +5.25 V; V
IOUT1
= V
IOUT2
= AGND = 0 V. V
REF
= 6 V rms, 1 kHz sine wave; DAC output op amp is
AD843; T
A
= T
MIN
to T
MAX
, unless otherwise noted. These characteristics are included for Design Guidance and are
not subject to test.)
AC Performance Characteristics
B