AD7801 Analog Devices, AD7801 Datasheet - Page 3

• Manufacturer Part Number: AD7801
• Description: +2.7 V to +5.5 V, Parallel Input, Voltage Output 8-Bit DAC
• Manufacturer: Analog Devices

Specifications of AD7801

• Resolution (bits): 8bit
• Dac Update Rate: 833kSPS
• Dac Settling Time: 1.2µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par

TIMING CHARACTERISTICS
Parameter
t
t
t
t
t
t
t
t
NOTES
1
2
ABSOLUTE MAXIMUM RATINGS*
(T
V
Reference Input Voltage to AGND . . . . –0.3 V to V
Digital Input Voltage to DGND . . . . . . –0.3 V to V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
V
Operating Temperature Range
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . +150 C
SSOP Package, Power Dissipation . . . . . . . . . . . . . . . 700 mW
SOIC Package, Power Dissipation . . . . . . . . . . . . . . . 870 mW
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
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 AD7801 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
Sample tested at +25 C to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of V
See Figure 1.
1
2
3
4
5
6
7
8
(V
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.
DD
OUT
A
Commercial (B Version) . . . . . . . . . . . . . –40 C to +105 C
Lead Temperature, Soldering
Lead Temperature, Soldering
IL
= +25 C unless otherwise noted)
JA
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . +215 C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220 C
JA
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . +215 C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220 C
+ V
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Thermal Impedance . . . . . . . . . . . . . . . . . . . . 143 C/W
Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 74 C/W
to AGND . . . . . . . . . . . . . . . . . . –0.3 V to V
IH
)/2. tr and tf should not exceed 1 s on any digital input.
Limit at T
(B Version)
0
0
20
15
4.5
20
20
20
MIN
1, 2
, T
MAX
(V
unless otherwise noted.)
DD
= +2.7 V to +5.5 V; GND = 0 V; Internal V
DD
DD
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
–3–
Units
ns min
ns min
ns min
ns min
ns min
ns min
ns min
ns min
Model
AD7801BR
AD7801BRU
*R = Small Outline; RU = Thin Shrink Small Outline.
DD
ORDERING GUIDE
/2 Reference. All specifications T
DD
) and timed from a voltage level of
Temperature
Range
–40 C to +105 C
–40 C to +105 C
Conditions/Comments
Chip Select to Write Setup Time
Chip Select to Write Hold Time
Write Pulse Width
Data Setup Time
Data Hold Time
Write to LDAC Setup Time
LDAC Pulse Width
CLR Pulse Width
WARNING!
ESD SENSITIVE DEVICE
AD7801
MIN
Package
Option*
R-20
RU-20
to T
MAX