AD7904/AD7914/AD7924
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25°C unless otherwise noted.)
AV
DD
to AGND ............................................... –0.3 V to +7 V
V
DRIVE
to AGND ................................ –0.3 V to AV
DD
+ 0.3 V
Analog Input Voltage to AGND ......... –0.3 V to AV
DD
+ 0.3 V
Digital Input Voltage to AGND ........................ –0.3 V to +7 V
Digital Output Voltage to AGND ........... –0.3 V to AV
DD
+ 0.3 V
REF
IN
to AGND ................................ –0.3 V to AV
DD
+ 0.3 V
Input Current to Any Pin Except Supplies
2
.................
±
10 mA
Operating Temperature Range
Commercial (B Version) ............................. –40°C to +85°C
Storage Temperature Range ...................... –65°C to +150°C
Junction Temperature ................................................... 150°C
TSSOP Package, Power Dissipation ........................... 450 mW
θ
JA
Thermal Impedance ......................... 150.4°C/W (TSSOP)
θ
JC
Thermal Impedance ........................... 27.6°C/W (TSSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) ................................................ 215°C
Infrared (15 secs) ....................................................... 220°C
ESD ................................................................................. 2 kV
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only and 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.
2
Transient currents of up to 100 mA will not cause SCR latch up.
200 A
I
OL
TO
OUTPUT
PIN
C
L
50pF
1.6V
200 A
I
OH
Figure 1. Load Circuit for Digital Output Timing Specifications
ORDERING GUIDE
Model
AD7904BRU
AD7914BRU
AD7924BRU
EVAL-AD79x4CB
2
EVAL-CONTROL BRD2
3
Temperature
Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Evaluation Board
Controller Board
Linearity
Error (LSB)
1
±
0.2
±
0.5
±
1
Package
Option
RU-16
RU-16
RU-16
Package
Description
TSSOP
TSSOP
TSSOP
NOTES
1
Linearity error here refers to integral linearity error.
2
This can be used as a stand alone evaluation board or in conjunction with the Evaluation Controller Board for evaluation/demonstration purposes.
The board comes with one chip of each the AD7904, AD7914, and AD7924.
3
This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators. To
order a complete evaluation kit you will need to order the particular ADC evaluation board, e.g., EVAL-AD79x4CB, the EVAL-CONTROL BRD2,
and a 12 V ac transformer. See relevant Evaluation Board Technical Note for more information.
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
AD7904/AD7914/AD7924 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.
REV. 0
–9–
AD [ ANALOG DEVICES ]
