AD7224
1
(V = +15 V ؎ 5%; V = AGND = DGND = O V; V = +10 V unless otherwise noted.
DD
SS
REF
SINGLE SUPPLY
All specifications TMIN to TMAX unless otherwise noted.)
K, B, T
L, C, U
P aram eter
Versions2
Versions2
Units
Conditions/Com m ents
ST AT IC PERFORMANCE
Resolution
8
8
Bits
T otal Unadjusted Error
Differential Nonlinearity
±2
±1
±2
±1
LSB max
LSB max
Guaranteed Monotonic
REFERENCE INPUT
Input Resistance
8
100
8
100
kΩ min
pF max
Input Capacitance3
Occurs when DAC is loaded with all 1s.
DIGIT AL INPUT S
Input High Voltage, VINH
Input Low Voltage, VINL
Input Leakage Current
Input Capacitance3
Input Coding
2.4
0.8
±1
2.4
0.8
±1
V min
V max
µA max
pF max
VIN = 0 V or VDD
8
8
Binary
Binary
DYNAMIC PERFORMANCE
Voltage Output Slew Rate4
Voltage Output Settling T ime4
Positive Full-Scale Change
Negative Full-Scale Change
Digital Feedthrough3
2
2
V/µs min
5
5
µs max
µs max
nV secs typ
kΩ min
Settling T ime to ±1/2 LSB
Settling T ime to ±1/2 LSB
VREF = 0 V
20
50
2
20
50
2
Minimum Load Resistance
VOUT = +10 V
POWER SUPPLIES
VDD Range
IDD
14.25/15.75
14.25/15.75
V min/V max
For Specified Performance
@ 25°C
T MIN to T MAX
4
6
4
6
mA max
mA max
Outputs Unloaded; VIN = VINL or VINH
Outputs Unloaded; VIN = VINL or VINH
SWIT CHING CHARACT ERIST ICS3, 4
t1
@ 25°C
T MIN to T MAX
t2
@ 25°C
T MIN to T MAX
t3
90
90
90
90
ns min
ns min
Chip Select/Load DAC Pulse Width
Write/Reset Pulse Width
90
90
90
90
ns min
ns min
@ 25°C
T MIN to T MAX
t4
@ 25°C
T MIN to T MAX
t5
@ 25°C
T MIN to T MAX
t6
0
0
0
0
ns min
ns min
Chip Select/Load DAC to Write Setup T ime
Chip Select/Load DAC to Write Hold T ime
Data Valid to Write Setup T ime
0
0
0
0
ns min
ns min
90
90
90
90
ns min
ns min
@ 25°C
T MIN to T MAX
10
10
10
10
ns min
ns min
Data Valid to Write Hold T ime
NOT ES
1Maximum possible reference voltage.
2T emperature ranges are as follows:
AD7224KN, LN: 0°C to +70°C
AD7224BQ, CQ: –25°C to +85°C
AD7224T D, UD: –55°C to +125°C
3See T erminology.
4Sample tested at 25°C by Product Assurance to ensure compliance.
Specifications subject to change without notice.
–3–
REV. B
ADI [ ADI ]
