REV. A
AD7709
–8–
WARNING!
ESD SENSITIVE DEVICE
PIN CONFIGURATION
TOP VIEW
(Not to Scale)
1
AD7709
GND
VDD
XTAL2
XTAL1
RDY
DOUT
DIN
RESET
SCLK
CS
P1/SW1
PWRGND
IOUT1
IOUT2
REFIN1(+)
REFIN1(–)
AIN1
AIN2
AIN3/P3
AIN4/P4
AINCOM
P2/SW2
REFIN2(+)
REFIN2(–)
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
ABSOLUTE MAXIMUM RATINGS
*
(TA = 25
∞C, unless otherwise noted.)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
PWRGND to AGND . . . . . . . . . . . . . . –20 mV to +20 mV
Analog Input Voltage to GND . . . . . –0.3 V to VDD + 0.3 V
Reference Input Voltage to GND . . . –0.3 V to VDD + 0.3 V
Total AIN/REFIN Current (Indefinite) . . . . . . . . . . 30 mA
Digital Input Voltage to GND . . . . . . . –0.3 V to VDD + 0.3 V
Digital Output Voltage to GND . . . . –0.3 V to VDD + 0.3 V
Operating Temperature Range . . . . . . . . . . –40
∞C to +85∞C
Storage Temperature Range . . . . . . . . . . . . –65
∞C to +150∞C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150
∞C
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . 97.9∞C/W
qJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 14∞C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215
∞C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
∞C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
ORDERING GUIDE
Temperature
Package
Model
Range
Description
Option
AD7709ARU
–40
∞C to +85∞C TSSOP
RU-24
AD7709BRU
–40
∞C to +85∞C TSSOP
RU-24
EVAL-AD7709EB
Evaluation Board
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD7709 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.