=
V
AD7824/AD7828–SPECIFICATIONS
(Vapply5toV,Mode(+) = 5 V, V
noted. All specifications T to T , unless otherwise noted. Specifications
0.)
DD
REF
MIN
MAX
REF
(–) = GND = O V, unless otherwise
Conditions/Comments
Parameter
ACCURACY
Resolution
Total Unadjusted Error
2
Minimum Resolution for which
No Missing Codes Are Guaranteed
Channel-to-Channel Mismatch
REFERENCE INPUT
Input Resistance
V
REF
(+) Input Voltage Range
V
REF
(–) Input Voltage Range
ANALOG INPUT
Input Voltage Range
Input Leakage Current
Input Capacitance
3
LOGIC INPUTS
RD, CS,
A0, A1, and A2
V
INH
V
INL
I
INH
I
INL
Input Capacitance
3
LOGIC OUTPUTS
DB0–DB7 and
INT
V
OH
V
OL
I
OUT
(DB0–DB7)
Output Capacitance
3
RDY
V
OL4
I
OUT
Output Capacitance
SLEW RATE, TRACKING
3
POWER SUPPLY
V
DD
I
DD5
Power Dissipation
Power Supply Sensitivity
NOTES
1
Temperature ranges are as follows:
K Version
1
L Version B, T Versions
8
±
1
8
±
1/4
1.0/4.0
V
REF
(–)/
V
DD
GND/
V
REF
(+)
V
REF
(–)/
V
REF
(+)
±
3
45
8
±
1/2
8
±
1/4
1.0/4.0
V
REF
(–)/
V
DD
GND/
V
REF
(+)
V
REF
(–)/
V
REF
(+)
±
3
45
8
±
1
8
±
1/4
1.0/4.0
V
REF
(–)/
V
DD
GND/
V
REF
(+)
V
REF
(–)/
V
REF
(+)
±
3
45
C, U Versions Unit
8
±
1/2
8
±
1/4
1.0/4.0
V
REF
(–)/
V
DD
GND/
V
REF
(+)
V
REF
(–)/
V
REF
(+)
±
3
45
Bits
LSB max
Bits
LSB max
kΩ min/kΩ max
V min/V max
V min/V max
V min/V max
µA
max
pF typ
Analog Input Any Channel
0 V to 5 V
2.4
0.8
1
–1
8
2.4
0.8
1
–1
8
2.4
0.8
1
–1
8
2.4
0.8
1
–1
8
V min
V max
µA
max
µA
max
pF max
Typically 5 pF
4.0
0.4
±
3
8
0.4
±
3
8
0.7
0.157
5
16
50
80
±
1/4
4.0
0.4
±
3
8
0.4
±
3
8
0.7
0.157
5
16
50
80
±
1/4
4.0
0.4
±
3
8
0.4
±
3
8
0.7
0.157
5
20
50
100
±
1/4
4.0
0.4
±
3
8
0.4
±
3
8
0.7
0.157
5
20
50
100
±
1/4
V min
V max
µA
max
pF max
V max
µA
max
pF max
V/µs typ
V/µs max
V
mA max
mW typ
mW max
LSB max
I
SOURCE
= 360
µA
I
SINK
= 1.6 mA
Floating State Leakage
Typically 5 pF
I
SINK
= 2.6 mA
Floating State Leakage
Typically 5 pF
±
5% for Specified
Performance
CS
=
RD
= 2.4 V
±
1/16 LSB typ
V
DD
= 5 V
±
5%
K, L Versions: 0°C to 70°C
B, C Versions: –40°C to +85°C
T, U Versions: –55°C to +125°C
2
Total Unadjusted Error includes offset, full-scale and linearity errors.
3
Sample tested at 25°C by Product Assurance to ensure compliance.
4
RDY is an open-drain output.
5
See Typical Performance Characteristics.
Specifications subject to change without notice.
–2–
REV. F
AD [ ANALOG DEVICES ]
