MAX105 Maxim, MAX105 Datasheet
MAX105
Manufacturer Part Number
MAX105
Description
Dual / 6-Bit / 800Msps ADC with On-Chip / Wideband Input Amplifier
Manufacturer
Maxim
Datasheet
1.MAX105.pdf
(21 pages)
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The MAX105 is a dual, 6-bit, analog-to-digital converter
(ADC) designed to allow fast and precise digitizing of
in-phase (I) and quadrature (Q) baseband signals. The
MAX105 converts the analog signals of both I and Q
components to digital outputs at 800Msps while achiev-
ing a signal-to-noise ratio (SNR) of typically 37dB with
an input frequency of 200MHz, and an integral nonlin-
earity (INL) and differential nonlinearity (DNL) of ±0.25
LSB. The MAX105 analog input preamplifiers feature a
400MHz, -0.5dB, and a 1.5GHz, -3dB analog input
bandwidth. Matching channel-to-channel performance
is typically 0.04dB gain, 0.1LSB offset, and 0.2 degrees
phase. Dynamic performance is 36.4dB signal-to-noise
plus distortion (SINAD) with a 200MHz analog input sig-
nal and a sampling speed of 800MHz. A fully differen-
tial comparator design and encoding circuits reduce
out-of-sequence errors, and ensure excellent
metastable performance of only one error per 10
cycles.
In addition, the MAX105 provides LVDS digital outputs
with an internal 6:12 demultiplexer that reduces the out-
put data rate to one-half the sample clock rate. Data is
output in two’s complement format. The MAX105 oper-
ates from a +5V analog supply and the LVDS output
ports operate at +3.3V. The data converter’s typical
power dissipation is 2.6W. The device is packaged in
an 80-pin, TQFP package with exposed paddle, and is
specified for the extended (-40°C to +85°C) tempera-
ture range. For a lower-speed, 400Msps version of the
MAX105, please refer to the MAX107 data sheet.
19-2006; Rev 0; 5/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
VSAT Receivers
WLANs
Test Instrumentation
Communications Systems
________________________________________________________________ Maxim Integrated Products
Dual, 6-Bit, 800Msps ADC with On-Chip,
General Description
Applications
16
clock
Wideband Input Amplifier
o Two Matched 6-Bit, 800Msps ADCs
o Excellent Dynamic Performance
o Typical INL and DNL: ±0.25LSB
o Channel-to-Channel Phase Matching: ±0.2°
o Channel-to-Channel Gain Matching: ±0.04dB
o 6:12 Demultiplexer reduces the Data Rates to
o Low Error Rate: 10
o LVDS Digital Outputs in Two’s Complement
MAX105ECS
400MHz
800Msps
Format
PART
36.4dB SINAD at f
f
CLK
≈ 800MHz
TEMP. RANGE
-40°C to +85°C
REF
Ordering Information
16
Metastable States at
IN
Q ADC
I ADC
≈ 200MHz and
MAX107
Block Diagram
AUXILIARY
AUXILIARY
PRIMARY
PRIMARY
PORT
PORT
PORT
PORT
80-Pin TQFP-EP
PIN-PACKAGE
Q
Q
I
I
Features
1
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