EVAL-AD7689EDZ Datasheet, PDF (6/32 Pages) Analog Devices – 16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC

AD7682/AD7689
Data Sheet
VDD = 2.3 V to 5.5 V, VIO = 1.8 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter
INTERNAL REFERENCE
REF Output Voltage
REFIN Output Voltage¹
REF Output Current
Temperature Drift
Line Regulation
Long-Term Drift
Turn-On Settling Time
EXTERNAL REFERENCE
Voltage Range
Current Drain²
TEMPERATURE SENSOR
Output Voltage³
Temperature Sensitivity
DIGITAL INPUTS
Logic Levels
VIL
VIH
IIL
IIH
DIGITAL OUTPUTS
Data Format⁴
Pipeline Delay⁵
VOL
VOH
POWER SUPPLIES
VDD
VIO
Standby Current^{6, 7}
Power Dissipation
Energy per Conversion
TEMPERATURE RANGE⁸
Specified Performance
Conditions/Comments
2.5 V, @ 25°C
4.096 V, @ 25°C
2.5 V, @ 25°C
4.096 V, @ 25°C
VDD = 5 V ± 5%
1000 hours
CREF = 10 μF
REF input
REFIN input (buffered)
250 kSPS, REF = 5 V
@ 25°C
All Models/Grades
Min
Typ Max
2.490
4.086
2.500
4.096
1.2
2.3
±300
±10
±15
50
5
2.510
4.106
0.5
VDD + 0.3
0.5
VDD − 0.5
50
283
1
−0.3
0.7 × VIO
−1
−1
+0.3 × VIO
VIO + 0.3
+1
+1
ISINK = +500 μA
ISOURCE = −500 μA
0.4
VIO − 0.3
Specified performance
2.3
Specified performance
1.8
VDD and VIO = 5 V, @ 25°C
VDD = 2.5 V, 100 SPS throughput
VDD = 2.5 V, 200 kSPS throughput
VDD = 5 V, 250 kSPS throughput
VDD = 5 V, 250 kSPS throughput with internal reference
VDD = 5V
5.5
VDD + 0.3
50
1.7
3.5
12.5 18
15.5 21
60
TMIN to TMAX
−40
+85
1 _{This is the output from the internal band gap.}
2 _{This is an average current and scales with throughput.}
3 _{The output voltage is internal and present on a dedicated multiplexer input.}
4 _{Unipolar mode: serial 16-bit straight binary.}
Bipolar mode: serial 16-bit twos complement.
5 _{Conversion results available immediately after completed conversion.}
6 _{With all digital inputs forced to VIO or GND as required.}
7 _{During acquisition phase.}
8 _{Contact an Analog Devices, Inc., sales representative for the extended temperature range.}
Unit
V
V
V
V
μA
ppm/°C
ppm/V
ppm
ms
V
V
μA
mV
mV/°C
V
V
μA
μA
V
V
V
V
nA
μW
mW
mW
mW
nJ
°C
Rev. D | Page 6 of 32