ADA4932-1YCPZ-RL Analog Devices Inc, ADA4932-1YCPZ-RL Datasheet - Page 19
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ADA4932-1YCPZ-RL
Manufacturer Part Number
ADA4932-1YCPZ-RL
Description
Lw Cst/Lw Pwr Diff ADC Driver
Manufacturer
Analog Devices Inc
Datasheet
1.ADA4932-1YCPZ-R7.pdf
(28 pages)
Specifications of ADA4932-1YCPZ-RL
Design Resources
Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105)
Amplifier Type
Differential
Number Of Circuits
1
Output Type
Differential
Slew Rate
2800 V/µs
-3db Bandwidth
560MHz
Current - Input Bias
2.5µA
Voltage - Input Offset
500µV
Current - Supply
9.6mA
Current - Output / Channel
80mA
Voltage - Supply, Single/dual (±)
3 V ~ 11 V, ±1.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
16-LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Gain Bandwidth Product
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
THEORY OF OPERATION
The ADA4932-x differs from conventional op amps in that it
has two outputs whose voltages move in opposite directions and
an additional input, V
loop gain and negative feedback to force these outputs to the
desired voltages. The ADA4932-x behaves much like a standard
voltage feedback op amp and facilitates single-ended-to-differential
conversions, common-mode level shifting, and amplifications of
differential signals. Like an op amp, the ADA4932-x has high input
impedance and low output impedance. Because it uses voltage
feedback, the ADA4932-x manifests a nominally constant gain
bandwidth product.
Two feedback loops are employed to control the differential and
common-mode output voltages. The differential feedback, set
OCM
. Like an op amp, it relies on high open-
Rev. A | Page 19 of 28
with external resistors, controls only the differential output voltage.
The common-mode feedback controls only the common-mode
output voltage. This architecture makes it easy to set the output
common-mode level to any arbitrary value within the specified
limits. The output common-mode voltage is forced, by the internal
common-mode feedback loop, to be equal to the voltage applied
to the V
The internal common-mode feedback loop produces outputs
that are highly balanced over a wide frequency range without
requiring tightly matched external components. This results in
differential outputs that are very close to the ideal of being
identical in amplitude and are exactly 180° apart in phase.
OCM
input.
ADA4932-1/ADA4932-2