AD7682 Analog Devices, AD7682 Datasheet - Page 6

• Manufacturer Part Number: AD7682
• Manufacturer: Analog Devices

Specifications of AD7682

• Resolution (bits): 16bit
• # Chan: 4
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Bip,SE-Uni
• Ain Range: Bip (Vref) x 0.5,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP

AD7682/AD7689
VDD = 2.3 V to 5.5 V, VIO = 1.8 V to VDD, V
Table 3.
Parameter
INTERNAL REFERENCE
EXTERNAL REFERENCE
TEMPERATURE SENSOR
DIGITAL INPUTS
DIGITAL OUTPUTS
POWER SUPPLIES
TEMPERATURE RANGE
1
2
3
4
5
6
7
8
This is the output from the internal band gap.
This is an average current and scales with throughput.
The output voltage is internal and present on a dedicated multiplexer input.
Unipolar mode: serial 16-bit straight binary.
Conversion results available immediately after completed conversion.
With all digital inputs forced to VIO or GND as required.
During acquisition phase.
Contact an Analog Devices, Inc., sales representative for the extended temperature range.
Bipolar mode: serial 16-bit twos complement.
Temperature Sensitivity
VDD
VIO
REF Output Voltage
REFIN Output Voltage
REF Output Current
Temperature Drift
Line Regulation
Long-Term Drift
Turn-On Settling Time
Voltage Range
Current Drain
Output Voltage
Logic Levels
Data Format
Pipeline Delay
V
V
Standby Current
Power Dissipation
Energy per Conversion
Specified Performance
OL
OH
V
V
I
I
IL
IH
IL
IH
4
2
5
3
6, 7
8
1
Conditions/Comments
4.096 V, @ 25°C
2.5 V, @ 25°C
4.096 V, @ 25°C
VDD = 5 V ± 5%
1000 hours
C
REF input
REFIN input (buffered)
250 kSPS, REF = 5 V
@ 25°C
I
I
Specified performance
Specified performance
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
T
2.5 V, @ 25°C
SINK
SOURCE
MIN
REF
= +500 μA
= 10 μF
to T
= −500 μA
MAX
REF
= VDD, all specifications T
Rev. C | Page 6 of 32
MIN
to T
MAX
, unless otherwise noted.
Min
2.490
4.086
0.5
0.5
−0.3
0.7 × VIO
−1
−1
VIO − 0.3
2.3
1.8
−40
All Models/Grades
Typ
2.500
4.096
1.2
2.3
±300
±10
±15
50
5
50
283
1
50
1.7
3.5
12.5
15.5
60
Max
2.510
4.106
VDD + 0.3
VDD − 0.5
+0.3 × VIO
VIO + 0.3
+1
+1
0.4
5.5
VDD + 0.3
18
21
+85
Data Sheet
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