(V = 5 V, VREF (+) = 5 V, VREF (–) = GND = O V, unless otherwise
noted. All specifications TMIN to TMAX, unless otherwise noted. Specifications apply to Mode 0.)
AD7824/AD7828–SPECIFICATIONS
DD
Parameter
K Version1 L Version B, T Versions
C, U Versions Unit
Conditions/Comments
ACCURACY
Resolution
8
8
8
8
8
8
8
8
Bits
LSB max
Total Unadjusted Error2
Minimum Resolution for which
No Missing Codes Are Guaranteed
Channel-to-Channel Mismatch
1
1/2
1/4
1
1/2
1/4
Bits
LSB max
1/4
1/4
REFERENCE INPUT
Input Resistance
1.0/4.0
VREF (–)/
VDD
1.0/4.0
VREF (–)/
VDD
1.0/4.0
VREF (–)/
VDD
1.0/4.0
VREF (–)/
VDD
kΩ min/kΩ max
V min/V max
V
REF (+) Input Voltage Range
VREF (–) Input Voltage Range
GND/
VREF (+)
GND/
VREF (+)
GND/
VREF (+)
GND/
VREF (+)
V min/V max
V min/V max
ANALOG INPUT
Input Voltage Range
VREF (–)/
VREF (–)/
VREF (+)
3
VREF (–)/
VREF (+)
3
VREF (–)/
VREF (+)
3
V
REF (+)
Input Leakage Current
Input Capacitance3
3
45
µA max
pF typ
Analog Input Any Channel
0 V to 5 V
45
45
45
LOGIC INPUTS
RD, CS, A0, A1, and A2
VINH
VINL
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
IINH
IINL
Input Capacitance3
Typically 5 pF
LOGIC OUTPUTS
DB0–DB7 and INT
VOH
4.0
0.4
3
4.0
0.4
3
4.0
0.4
3
4.0
0.4
3
V min
ISOURCE = 360 µA
ISINK = 1.6 mA
Floating State Leakage
Typically 5 pF
VOL
V max
µA max
pF max
IOUT (DB0–DB7)
Output Capacitance3
RDY
8
8
8
8
4
VOL
0.4
3
8
0.4
3
8
0.4
3
8
0.4
3
8
V max
µA max
pF max
ISINK = 2.6 mA
Floating State Leakage
Typically 5 pF
IOUT
Output Capacitance
SLEW RATE, TRACKING3
0.7
0.157
0.7
0.157
0.7
0.157
0.7
0.157
V/µs typ
V/µs max
POWER SUPPLY
VDD
5
5
5
5
V
5% for Specified
Performance
CS = RD = 2.4 V
5
IDD
16
50
80
1/4
16
50
80
1/4
20
50
100
1/4
20
50
100
1/4
mA max
mW typ
mW max
LSB max
Power Dissipation
Power Supply Sensitivity
1/16 LSB typ
VDD = 5 V 5%
NOTES
1Temperature ranges are as follows: K, L Versions: 0°C to 70°C
B, C Versions: –40°C to +85°C
T, U Versions: –55°C to +125°C
2Total Unadjusted Error includes offset, full-scale and linearity errors.
3Sample tested at 25°C by Product Assurance to ensure compliance.
4RDY is an open-drain output.
5See Typical Performance Characteristics.
Specifications subject to change without notice.
–2–
REV. F
ADI [ ADI ]
