Datasheet Analog Devices ADA4939-1YCPZ-R7 — 数据表

Ultralow Distortion,
Differential ADC Driver
ADA4939-1/ADA4939-2 Data Sheet
FEATURES FUNCTIONAL BLOCK DIAGRAMS
13 -VS 12 PD +IN 2 11 -OUT -IN 3 10 +OUT 07752-001 VOCM +VS 8 +VS 7 +VS 6 9
+VS 5 +FB 4 19 -OUT1 18 +OUT1
17 VOCM1
16 -VS2 -IN1 1
+FB1 2
+VS1 3
+VS1 4 ADA4939-2 15 -VS2 -IN2 7 +OUT2 12 13 -OUT2
+VS2 10 +IN2 6
VOCM2 11 14 PD2 +FB2 8
+VS2 9 -FB2 5 07429-002 21 -VS1 20 PD1 24 +IN1
23 -FB1
22 -VS1 Figure 1. ADA4939-1 Figure 2. ADA4939-2 With the ADA4939-1/ADA4939-2, differential gain configurations
are easily realized with a simple external feedback network of four
resistors that determine the closed-loop gain of the amplifier.
The ADA4939-1/ADA4939-2 are fabricated using Analog Devices,
Inc., proprietary silicon-germanium (SiGe), complementary bipolar
process, enabling them to achieve very low levels of distortion with
an input voltage noise of only 2.3 nV/√Hz. The low dc offset and
excellent dynamic performance of the ADA4939-1/ADA4939-2 …