EVAL-AD7854CB Просмотр технического описания (PDF) - Analog Devices
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EVAL-AD7854CB Datasheet PDF : 28 Pages
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1.6mA IOL
TO
OUTPUT
PIN
CL
50pF
200µA IOH
+2.1V
Figure 1. Load Circuit for Digital Output Timing
Specifications
PIN CONFIGURATION
FOR DIP, SOIC AND SSOP
CONVST 1
28 BUSY
WR 2
27 CLKIN
RD 3
26 DB11
CS 4
25 DB10
REFIN/REFOUT 5 AD7854 24 DB9
AVDD 6 TOP VIEW 23 DGND
AGND 7 (Not to Scale) 22 DVDD
CREF1 8
21 DB8
CREF2 9
20 DB7
AIN(+) 10
19 DB6
AIN(–) 11
18 DB5
HBEN 12
17 DB4
DB0 13
16 DB3
DB1 14
15 DB2
AD7854/AD7854L
ABSOLUTE MAXIMUM RATINGS1
(TA = +25°C unless otherwise noted)
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Analog Input Voltage to AGND . . . . –0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND . . . . –0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND . . . –0.3 V to DVDD + 0.3 V
REFIN/REFOUT to AGND . . . . . . . . . –0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . . . ± 10 mA
Operating Temperature Range
Commercial (A, B Versions) . . . . . . . . . . . –40°C to +85°C
Commercial (S Version) . . . . . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Cerdip Package, Power Dissipation . . . . . . . . . . . . . . 450 mW
θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 75°C/W
Lead Temperature, (Soldering, 10 secs) . . . . . . . . . +300°C
SOIC, SSOP Package, Power Dissipation . . . . . . . . . 450 mW
θJA Thermal Impedance . . . 75°C/W (SOIC) 115°C/W (SSOP)
θJC Thermal Impedance . . . 25°C/W (SOIC) 35°C/W (SSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
NOTES
1Stresses 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.
2Transient currents of up to 100 mA will not cause SCR latchup.
Model
ORDERING GUIDE
Temperature
Range1
Linearity
Error
(LSB)
Power
Dissipation
(mW)
Package
Option2
AD7854AQ
–40°C to +85°C 1
15
AD7854SQ
–55°C to +125°C 1
15
AD7854AR
–40°C to +85°C 1
15
AD7854BR
–40°C to +85°C 1/2
15
AD7854ARS
–40°C to +85°C 1
15
AD7854LAQ3
–40°C to +85°C 1
5.5
AD7854LAR3
–40°C to +85°C 1
5.5
AD7854LARS3
–40°C to +85°C 1
5.5
EVAL-AD7854CB4
EVAL-CONTROL BOARD5
Q-28
Q-28
R-28
R-28
RS-28
Q-28
R-28
RS-28
NOTES
1Linearity error refers to the integral linearity error.
2Q = Cerdip; R = SOIC; RS = SSOP.
3L signifies the low power version.
4This can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BOARD for
evaluation/demonstration purposes.
5This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards
ending in the CB designator. For more information on Analog Devices products and evaluation boards visit our
World Wide Web home page at http://www.analog.com.
REV. B
–5–
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