AD5280BRU200 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD5280BRU200 Datasheet PDF : 20 Pages
| |||
TEST CIRCUITS
Test Circuits 1 to 11 define the test conditions used in the
product specification table.
DUT
A
V؉
W
B
V+ = VDD
1LSB = V+/2N
VMS
AD5280/AD5282
A
W
VIN
DUT
OFFSET
GND
B
2.5V
+15V
AD8610
–15V
VOUT
Test Circuit 1. Potentiometer Divider Nonlinearity
Error (INL, DNL)
NO CONNECT
DUT
A
W
B
IW
VMS
Test Circuit 7. Gain vs. Frequency
DUT
W
B
RSW =
0.1V
ISW
CODE = H
ISW
0.1V
VSS TO VDD
Test Circuit 2. Resistor Position Nonlinearity
Error (Rheostat Operation; R-INL, R-DNL)
VMS2
DUT
A
W
B
IW = VDD /RNOMINAL
VW
VMS1 RW = [VMS1 – VMS2]/IW
Test Circuit 3. Wiper Resistance
VA
VDD A
V+
W
B
( ) V+ = VDD 10%
PSRR (dB) = 20 LOG
⌬VMS
⌬VDD
PSS (%/%) = ⌬VMS%
⌬VDD%
VMS
Test Circuit 4. Power Supply Sensitivity (PSS, PSSR)
OFFSET
GND
A DUT B
VIN
W
OFFSET
BIAS
5V
OP279
VOUT
Test Circuit 5. Inverting Gain
5V
OFFSET
GND
OP279
VIN
W
A DUT B
OFFSET
BIAS
VOUT
Test Circuit 8. Incremental On Resistance
NC
VDD
DUT
A
ICM
W
VSS GND
B
VCM
NC NC = NO CONNECT
Test Circuit 9. Common-Mode Leakage Current
VLOGIC
ILOGIC
SCL
SDA
DIGITAL INPUT
VOLTAGE
Test Circuit 10. VLOGIC Current vs. Digital Input Voltage
A1
VDD
A2
RDAC1
RDAC2
VIN
W1
N/C
B1 VSS
W2
VOUT
B2
/ CTA = 20 log [VOUT VIN]
Test Circuit 11. Analog Crosstalk (AD5282 Only)
Test Circuit 6. Noninverting Gain
REV. 0
–9–
Share Link: 