Datasheet Analog Devices ADA4805-2ARMZ

REVISIONS
LTR DESCRIPTION DATE Prepared in accordance with ASME Y14.24 APPROVED Vendor item drawing REV
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PAGE 1 2 PMIC N/A PREPARED BY
RICK OFFICER Original date of drawing
YY-MM-DD CHECKED BY
RAJESH PITHADIA 16-07-25 4 A
REV 5 6 7 8 9 10 11 12 13 14 15 16 17 DLA LAND AND MARITIME
COLUMBUS, OHIO 43218-3990
http://www.landandmaritime.dla.mil/
TITLE
MICROCIRCUIT, LINEAR, 105 MHz LOW
POWER, LOW NOISE, RAIL TO RAIL AMPLIFIER,
MONOLITHIC SILICON APPROVED BY
CHARLES F. SAFFLE
SIZE AMSC N/A 3 CODE IDENT. NO. DWG NO. V62/16621 16236
PAGE 1 OF 17
5962-V095-16 1. SCOPE 1.1 Scope. This drawing documents the general requirements of a high performance 105 MHz low power, low noise, rail to rail
amplifier microcircuit, with an operating temperature range of -55C to +125C. …

FEATURES TYPICAL APPLICATIONS CIRCUIT APPLICATIONS
High resolution, high precision analog-to-digital converter
(ADC) drivers
Battery-powered instrumentation
Micropower active filters
Portable point of sales terminals
Active RFID readers
Photo multipliers
ADC reference buffers GENERAL DESCRIPTION
The ADA4805-1/ADA4805-2 are high speed voltage feedback,
rail-to-rail output amplifiers with an exceptionally low
quiescent current of 500 µA, making them ideal for low power,
high resolution data conversion systems. Despite being low
power, these amplifiers provide excellent overall performance.
They offer a high bandwidth of 105 MHz at a gain of +1, a high
slew rate of 160 V/µs, and a low input offset voltage of 125 µV
(maximum).
A shutdown pin allows further reduction of the quiescent
supply current to 2.9 µA. For power sensitive applications, the
shutdown mode offers a very fast turn-on time of 3 µs. This
allows the user to dynamically manage the power of the
amplifier by turning the amplifier off between ADC samples. Rev. B +7.5V
5V REF ADA4805-1/ …

FEATURES TYPICAL APPLICATIONS CIRCUIT ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC standard)
Extended industrial temperature range (−55°C to +125°C)
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Enhanced product change notification
Qualification data available upon request +7.5V
5V REF
VDD
C2
10µF C4
100nF C3
0.1µF +7.5V ADA4805-2-EP 0V TO
VREF R3
20Ω IN+ C1
2.7nF REF VDD AD7980
IN– GND Figure 1. Driving the AD7980 with the ADA4805-2-EP The Analog Devices, Inc., proprietary extra fast complementary
bipolar (XFCB) process allows both low voltage and low current
noise (5.9 nV/√Hz, 0.6 pA/√Hz). The ADA4805-2-EP operates
over a wide range of supply voltages from ±1.5 V to ±5 V, as well as
single 3 V and 5 V supplies, making it ideal for high speed, low
power instruments. …