Datasheet

AD7683
Rev. A | Page 3 of 16
SPECIFICATIONS
VDD = 2.7 V to 5.5 V; V
REF
= VDD; T
A
= –40°C to +85°C, unless otherwise noted.
Table 2.
Parameter Conditions
AD7683 All Grades
Unit Min Typ Max
RESOLUTION 16 Bits
ANALOG INPUT
Voltage Range +IN − (–IN) 0 V
REF
V
Absolute Input Voltage +IN −0.1 VDD + 0.1 V
−IN −0.1 0.1 V
Analog Input CMRR f
IN
= 100 kHz 65 dB
Leakage Current at 25°C Acquisition phase 1 nA
Input Impedance See the Analog Input section
THROUGHPUT SPEED
Complete Cycle 10 μs
Throughput Rate 0 100 kSPS
DCLOCK Frequency 0 2.9 MHz
REFERENCE
Voltage Range 0.5 VDD + 0.3 V
Load Current 100 kSPS, V
+IN
− V
−IN
= V
REF
/2 = 2.5 V 50 μA
DIGITAL INPUTS
Logic Levels
V
IL
−0.3 0.3 × VDD V
V
IH
0.7 × VDD VDD + 0.3 V
I
IL
−1 +1 μA
I
IH
−1 +1 μA
Input Capacitance 5 pF
DIGITAL OUTPUTS
Data Format Serial, 16 bits straight binary
V
OH
I
SOURCE
= −500 μA VDD − 0.3 V
V
OL
I
SINK
= +500 μA 0.4 V
POWER SUPPLIES
VDD Specified performance 2.7 5.5 V
VDD Range
1
2.0 5.5 V
Operating Current 100 kSPS throughput
VDD VDD = 5 V 800 μA
VDD = 2.7 V 560 μA
Standby Current
2, 3
VDD = 5 V, 25°C 1 50 nA
Power Dissipation VDD = 5 V 4 6 mW
VDD = 2.7 V 1.5 mW
VDD = 2.7 V, 10 kSPS throughput
2
150 μW
TEMPERATURE RANGE
Specified Performance T
MIN
to T
MAX
−40 +85 °C
1
See the Typical Performance Characteristics section for more information.
2
With all digital inputs forced to VDD or GND, as required.
3
During acquisition phase.