Datasheet

AD7243–SPECIFICATIONS
Parameter A
2
B
2
S
2
Unit Test Conditions/Comments
STATIC PERFORMANCE
Resolution 12 12 12 Bits
Relative Accuracy
3
± 1 ± 1/2 ± 1 LSB max
Differential Nonlinearity
3
± 0.9 ± 0.9 ± 0.9 LSB max Guaranteed Monotonic
Unipolar Offset Error
3
± 4 ± 4 ± 5 LSB max V
SS
= 0 V or –12 V to –15 V
1
; DAC Latch
Contents All 0s
Bipolar Zero Error
3
± 5 ± 5 ± 6 LSB max V
SS
= –12 V to –15 V
1
; DAC Latch Contents All 0s
Full-Scale Error
3, 4
± 6 ± 6 ± 7 LSB max
Full-Scale Temperature Coefficient
5
± 5 ± 5 ± 5 ppm of FSR/ Guaranteed By Process
°C typ
REFERENCE OUTPUT
Reference Output Range, REFOUT 4.95/5.05 4.95/5.05 4.95/5.05 V min/V max
Reference Temperature Coefficient
5
± 25 ± 25 ± 30 ppm/°C typ Guaranteed By Process
Reference Load Change
(∆REFOUT VS . I
L
) –1 –1 –1 mV max Reference Load Current (I
L
) Change (0–100 µA)
REFERENCE INPUT
Reference Input Range, REFIN 4.95/5.05 4.95/5.05 4.95/5.05 V min/V max 5 V ± 1% for Specified Performance
Input Current 5 5 5 µA max
DIGITAL INPUTS
Input High Voltage, V
INH
2.4 2.4 2.4 V min
Input Low Voltage, V
INL
0.8 0.8 0.8 V max
Input Current, I
IN
± 1 ± 1 ± 1 µA max V
IN
= 0 V to V
DD
Input Capacitance
5
8 8 8 pF max
DIGITAL OUTPUT
Serial Data Out (SDO)
Output Low Voltage, V
OL
0.4 0.4 0.4 V max I
SINK
= 1.6 mA
Output High Voltage, V
OH
4.0 4.0 4.0 V min I
SOURCE
= 400 µA
ANALOG OUTPUT
Output Range Resistor, R
OFS
15/30 15/30 15/30 kΩ min/max Typically 20 k⍀. Guaranteed By Process
Output Voltage Ranges
6
+5, +10 +5, +10 +5, +10 V Single Supply; V
SS
= 0 V
Output Voltage Ranges
6
+5, +10, ± 5 +5, +10, ± 5 +5, +10, ± 5 V Dual Supply; V
SS
= –12 V to –15 V
DC Output Impedance
5
0.5 0.5 0.5 Ω typ
AC CHARACTERISTICS
5
Voltage Output Settling-Time Settling Time to Within ± 1/2 LSB of Final Value
Positive Full-Scale Change 10 10 10 µs max Typically 4 µs
Negative Full-Scale Change 10 10 10 µs max Typically 5 µs
Digital-to-Analog Glitch Impulse
3
30 30 30 nV secs typ DAC Latch Contents Toggled Between All 0s
and All 1s
Digital Feedthrough
3
10 10 10 nV secs typ LDAC = High
POWER REQUIREMENTS
V
DD
Range +10.8/+16.5 +10.8/+16.5 +11.4/+15.75 V min/V max For Specified Performance Unless Otherwise Stated
V
SS
Range (Dual Supplies) –10.8/–16.5 –10.8/–16.5 –11.4/–15.75 V min/V max For Specified Performance Unless Otherwise Stated
I
DD
10 10 10 mA max Output Unloaded; Typically 7 mA
I
SS
(Dual Supplies) 2 2 2 mA max Output Unloaded; Typically 1 mA
NOTES
1
Power Supply Tolerance A, B Versions: ± 10%; S Version: ± 5%.
2
Temperature ranges are as follows: A, B Versions: –40°C to +85°C; S Version: –55°C to +125°C.
3
See terminology.
4
Measured with respect to REFIN and includes unipolar/bipolar offset error.
5
Guaranteed by design and characterization, not production tested.
6
0 V to +10 V output range is available only with V
DD
≥ +14.25 V.
Specifications subject to change without notice.
(V
DD
= +12 V to +15 V,
1
V
SS
= 0 V or –12 V to –15 V,
1
AGND = DGND = O V, REFIN = +5 V,
R
L
= 2 k⍀, C
L
= 100 pF to AGND. All Specifications T
MIN
to T
MAX
unless otherwise noted.)
–2–
REV. A