Datasheet

AD7679
Rev. A | Page 4 of 28
Parameter Conditions Min Typ Max Unit
DIGITAL INPUTS
Logic Levels
V
IL
–0.3 +0.8 V
V
IH
2.0 DVDD + 0.3 V
I
IL
–1 +1 μA
I
IH
–1 +1 μA
DIGITAL OUTPUTS
Data Format
5
Pipeline Delay
6
V
OL
ISINK = 1.6 mA 0.4 V
V
OH
ISOURCE = –500 μA OVDD – 0.6 V
POWER SUPPLIES
Specified Performance
AVDD 4.75 5 5.25 V
DVDD 4.75 5 5.25 V
OVDD 2.7 DVDD + 0.3
7
V
Operating Current 500 kSPS Throughput
AVDD PDBUF High 10.8 mA
DVDD
8
4.5 mA
OVDD
8
50 μA
POWER DISSIPATION
8
PDBUF High @ 500 kSPS 76 90 mW
PDBUF High @ 1 kSPS 150 μW
PDBUF Low @ 500 kSPS 89 103 mW
TEMPERATURE RANGE
9
Specified Performance TMIN to TMAX –40 +85 °C
1
See Analog Inputs section.
2
LSB means Least Significant Bit. With the ±4.096 V input range, 1 LSB is 31.25 μV.
3
See Definition of Specifications section. The nominal gain error is not centered at zero and is −0.029% of FSR. This specification is the deviation from this nominal
value. These specifications do not include the error contribution from the external reference, but do include the error contribution from the reference buffer if used.
4
All specifications in dB are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale unless otherwise specified.
5
Parallel or Serial 18-Bit.
6
Conversion results are available immediately after completed conversion.
7
The max should be the minimum of 5.25 V and DVDD + 0.3 V.
8
Tested in Parallel Reading mode.
9
Contact factory for extended temperature range.