AD7242/AD7244
AD7244
Parameter
J, A Versions1
S Version1
Units
Test Conditions/Comments
DC ACCURACY
Resolution
14
14
Bits
Integral Nonlinearity
Differential Nonlinearity
Bipolar Zero Error
±2
±1
±10
±10
±10
±2
±1
±10
±10
±10
LSB max
LSB max
LSB max
LSB max
LSB max
Guaranteed Monotonic
Positive Full-Scale Error2
Negative Full-Scale Error2
REFERENCE OUTPUT3
REF OUT @ +25°C
TMIN to TMAX
REF OUT Tempco
Reference Load Change
(∆REF OUT vs. ∆I)
2.99/3.01
2.98/3.02
35
2.99/3.01
2.98/3.02
35
V min/V max
V min/V max
ppm/°C typ
–1
–1
mV max
Reference Load Current Change (0 µA–500 µA)
3 V ± 5%
REFERENCE INPUTS
REF INA, REF INB Input Range
Input Current
2.85/3.15
1
2.85/3.15
1
V min/V max
µA max
LOGIC INPUTS
(LDACA, LDACB, TFSA, TFSB,
TCLKA, TCLKB, DTA, DTB)
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN
2.4
0.8
±10
10
2.4
0.8
±10
10
V min
VDD = 5 V ± 5%
VDD = 5 V ± 5%
VIN = 0 V to VDD
V max
µA max
pF max
4
Input Capacitance, CIN
ANALOG OUTPUTS
(VOUTA, VOUTB
)
Output Voltage Range
DC Output Impedance
Short Circuit Current
±3
0.1
20
±3
0.1
20
V nom
Ω typ
mA typ
AC CHARACTERISTICS4
Voltage Output Settling Time
Positive Full-Scale Change
Negative Full-Scale Change
Digital-to-Analog Glitch Impulse
Digital Feedthrough
Settling Time to Within ±1/2 LSB of Final Value
Typically 2.5 µs
Typically 2.5 µs
4
4
10
2
110
4
4
10
2
110
µs max
µs max
nV secs typ
nV secs typ
dB typ
DAC Code Change All 1s to All 0s
Channel-to-Channel Isolation
VOUT = 10 kHz Sine Wave
POWER REQUIREMENTS
VDD
VSS
IDD
ISS
+5
–5
27
15
195
+5
–5
28
15
205
V nom
V nom
mA max
mA max
mW max
±5% for Specified Performance
±5% for Specified Performance
Cumulative Current from the Two VDD Pins
Cumulative Current from the Two VSS Pins
Typically 130 mW
Total Power Dissipation
NOTES
1Temperature ranges are as follows: J Version: 0°C to +70°C; A Version: –40°C to +85°C; S Version: –55°C to +125°C.
2Measured with respect to REF IN and includes bipolar offset error.
3For capacitive loads greater than 50 pF, a series resistor is required (see Internal Reference section).
4Sample tested @ +25°C to ensure compliance.
Specifications subject to change without notice.
AD7244 ORDERING GUIDE
Temperature
Range
Integral
Nonlinearity
Package
Option2
Model1
AD7244JN
AD7244JR
AD7244AQ
AD7244SQ3
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
±2 LSB max
±2 LSB max
±2 LSB max
±2 LSB max
N-24
R-28
Q-24
Q-24
NOTES
1To order MIL-STD-883, Class B, processed parts, add /883B to part number.
Contact local sales office for military data sheet and availability.
2N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC).
3This grade will be available to /883B processing only.
–3–
REV. A
ADI [ ADI ]
