Datasheet Analog Devices ADA4930-1

REVISIONS
LTR DESCRIPTION DATE Prepared in accordance with ASME Y14.24 APPROVED Vendor item drawing REV
PAGE
REV
PAGE
REV STATUS
OF PAGES REV
PAGE 1 2 PMIC N/A PREPARED BY
RICK OFFICER Original date of drawing
YY-MM-DD CHECKED BY
RAJESH PITHADIA 13-05-29 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, LOW NOISE,
HIGH SPEED DIFFERENTIAL AMPLIFIER,
MONOLITHIC SILICON APPROVED BY
CHARLES F. SAFFLE
SIZE AMSC N/A 3 CODE IDENT. NO. DWG NO. V62/13615 16236
PAGE 1 OF 17
5962-V058-13 1. SCOPE
1.1 Scope. This drawing documents the general requirements of a high performance low noise, high speed differential amplifier …

Ultralow Noise
Drivers for Low Voltage ADCs
ADA4930-1/ADA4930-2 Data Sheet 13 -VS ADA4930-1 -FB 1 12 PD +IN 2 11 -OUT -IN 3 10 +OUT
9 09209-001 VOCM +VS 8 +VS 7 +VS 6 +VS 5 +FB 4 19 -OUT1 20 PD1 21 -VS1 23 -FB1
22 -VS1 24 +IN1 Figure 1. 18 +OUT1
17 VOCM1 -IN1 1
+FB1 2
+VS1 3 16 -VS2
15 -VS2 ADA4930-2 +VS1 4 14 PD2
13 -OUT2 -FB2 5 09209-002 +OUT2 12 VOCM2 11 +VS2 10 -IN2 7 +FB2 8
+VS2 9 +IN2 6 Figure 2. APPLICATIONS 100 ADC drivers
Single-ended-to-differential converters
IF and baseband gain blocks
Differential buffers
Line drivers VN (nV/√hz) 10 The ADA4930-1/ADA4930-2 are very low noise, low distortion,
high speed differential amplifiers. They are an ideal choice for
driving 1.8 V high performance ADCs with resolutions up to
14 bits from dc to 70 MHz. The adjustable output common
mode allows the ADA4930-1/ADA4930-2 to match the input of
the ADC. The internal common-mode feedback loop provides
exceptional output balance, suppression of even-order harmonic
distortion products, and dc level translation.
With the ADA4930-1/ADA4930-2, differential gain configurations …

Ultralow Noise
Drivers for Low Voltage ADCs
ADA4930-1-EP Enhanced Product APPLICATIONS
ADC drivers
Single-ended-to-differential converters
IF and baseband gain blocks
Differential buffers
Line drivers 14 -VS 13 -VS
12 PD +IN 2 11 -OUT -IN 3 10 +OUT +VS 8 +VS 7 +VS 5 +VS 6 VOCM
10371-001 9 +FB 4 Figure 1.
100 10 1 105°C
25°C
-55°C
0 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 2. Voltage Noise Spectral Density With the ADA4930-1-EP, differential gain configurations are easily
realized with a simple external feedback network of four resistors
determining the closed-loop gain of the amplifier.
The ADA4930-1-EP is fabricated using Analog Devices, Inc.,
proprietary silicon-germanium (SiGe), complementary bipolar
process, enabling it to achieve very low levels of distortion with
an input voltage noise of only 1.2 nV/√Hz. GENERAL DESCRIPTION
The ADA4930-1-EP is a very low noise, low distortion, high
speed differential amplifier. It is an ideal choice for driving 1.8 V
high performance ADCs with resolutions up to 14 bits from dc …