ADA4937-2YCPZ-RL Analog Devices Inc, ADA4937-2YCPZ-RL Datasheet - Page 17

• Manufacturer Part Number: ADA4937-2YCPZ-RL
• Description: IC,Differential Amplifier,DUAL,BIPOLAR,LLCC,24PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Type: ADC Driverr

Specifications of ADA4937-2YCPZ-RL

• Applications: Data Acquisition
• Mounting Type: Surface Mount
• Package / Case: 24-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TERMINOLOGY
Differential Voltage
Differential voltage refers to the difference between two node
voltages. For example, the output differential voltage (or
equivalently, output differential-mode voltage) is defined as
where V
−OUT terminals with respect to a common reference.
V
V
+D
–D
OUT, dm
–FB
OCM
+FB
+OUT
IN
IN
= (V
and V
R
R
G
G
R
R
+OUT
F
F
−OUT
Figure 52. Circuit Definitions
+IN
–IN
− V
refer to the voltages at the +OUT and
−OUT
ADA4937
)
–OUT
+OUT
R
L, dm
V
OUT, dm
Rev. C | Page 17 of 28
Common-Mode Voltage
Common-mode voltage refers to the average of two node
voltages. The output common-mode voltage is defined as
Output Balance
Output balance is a measure of how close the differential signals
are to being equal in amplitude and opposite in phase. Output
balance is most easily determined by placing a well-matched
resistor divider between the differential voltage nodes and
comparing the magnitude of the signal at the midpoint of the
divider with the magnitude of the differential signal (see Figure 50).
By this definition, output balance is the magnitude of the output
common-mode voltage divided by the magnitude of the output
differential mode voltage.
V
Output
OUT, cm
= (V
Balance
+OUT
+ V
Error
−OUT
ADA4937-1/ADA4937-2
=
)/2
V
V
OUT
OUT
,
,
dm
cm