AD7801 Analog Devices, AD7801 Datasheet - Page 2

• 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

AD7801–SPECIFICATIONS
Parameter
STATIC PERFORMANCE
DAC REFERENCE INPUT
OUTPUT CHARACTERISTICS
LOGIC INPUTS
POWER REQUIREMENTS
NOTES
1
2
3
4
Specifications subject to change without notice.
Temperature ranges are as follows: B Version: –40 C to +105 C
Relative Accuracy is calculated using a reduced code range of 15 to 245.
Gain Error is specified between Codes 15 and 245. The actual error at Code 15 is typically 3 LSB.
Guaranteed by characterization at product release, not production tested.
Resolution
Relative Accuracy
Differential Nonlinearity
Zero-Code Error @ +25 C
Full-Scale Error
Zero-Code Error Drift
Gain Error
REFIN Input Range
REFIN Input Impedance
Output Voltage Range
Output Voltage Settling Time
Slew Rate
Digital-to-Analog Glitch Impulse
Digital Feedthrough
DC Output Impedance
Short Circuit Current
Power Supply Rejection Ratio
Input Current
V
V
V
V
Pin Capacitance
V
I
I
DD
DD
INL
INL
INH
INH
DD
V
V
@ 25 C
(Normal Mode)
DD
DD
(Power-Down)
, Input Low Voltage
, Input Low Voltage
@ 25 C
T
@ 25 C
T
T
, Input High Voltage
, Input High Voltage
MIN
MIN
MIN
= 3.3 V
= 5.5 V
to T
to T
to T
3
MAX
MAX
MAX
2
D7-D0
LDAC
4
CLR
WR
CS
Figure 1. Timing Diagram for Parallel Data Write
B Versions
8
3
–0.75
100
1 to V
10
0 to V
2
7.5
1
0.2
40
14
0.0003
0.8
0.6
2.4
2.1
7
2.7/5.5
1.55
1.75
2.35
2.5
1
2
1
1
1
10
DD
DD
t
1
(V
All specifications T
/2
DD
1
= +2.7 V to +5.5 V, Internal Reference; C
t
3
t
4
–2–
t
5
t
Units
Bits
LSB max
LSB max
LSB typ
LSB typ
% FSR typ
V min/V max
M typ
V min/V max
V/ s typ
nV-s typ
nV-s typ
mA typ
%/% max
V max
V max
V min
V min
pF max
V min/V max
mA max
mA max
mA max
mA max
2
t
V/ C typ
s max
A max
A max
A max
6
typ
MIN
to T
t
t
MAX
7
8
unless otherwise noted.)
Conditions/Comments
Guaranteed Monotonic
All Zeros Loaded to DAC Register
All Ones Loaded to DAC Register
Typically 1.2 s
1 LSB Change Around Major Carry
V
V
V
V
DAC Active and Excluding Load Current
V
See Figure 6
V
See Figure 18
V
DD
DD
DD
DD
IH
IH
DD
= V
= V
= +5 V
= +3 V
= +5 V
= +3 V
= 10%
L
DD
DD
= 100 pF, R
and V
and V
IL
IL
L
= GND
= GND
= 10 k
to V
DD
and GND.
REV. 0