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MAX108 Datasheet(PDF) 1 Page - Maxim Integrated Products

Part No. MAX108
Description  ±5V, 1.5Gsps, 8-Bit ADC with On-Chip 2.2GHz Track/Hold Amplifier
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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 1 page
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For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Description
The MAX108 PECL-compatible, 1.5Gsps, 8-bit analog-
to-digital converter (ADC) allows accurate digitizing of
analog signals with bandwidths to 2.2GHz. Fabricated
on Maxim’s proprietary advanced GST-2 bipolar
process, the MAX108 integrates a high-performance
track/hold (T/H) amplifier and a quantizer on a single
monolithic die.
The innovative design of the internal T/H, which has an
exceptionally wide 2.2GHz full-power input bandwidth,
results in high performance (typically 7.5 effective bits)
at the Nyquist frequency. A fully differential comparator
design and decoding circuitry reduce out-of-sequence
code errors (thermometer bubbles or sparkle codes)
and provide excellent metastable performance. Unlike
other ADCs that can have errors resulting in false full-
or zero-scale outputs, the MAX108 limits the error mag-
nitude to 1LSB.
The analog input is designed for either differential or
single-ended use with a ±250mV input voltage range.
Dual, differential, positive-referenced emitter-coupled
logic (PECL)-compatible output data paths ensure easy
interfacing and include an 8:16 demultiplexer feature
that reduces output data rates to one-half the sampling
clock rate. The PECL outputs can be operated from any
supply between +3V to +5V for compatibility with +3.3V
or +5V referenced systems. Control inputs are provided
for interleaving additional MAX108 devices to increase
the effective system sampling rate.
The MAX108 is packaged in a 25mm x 25mm, 192-con-
tact Enhanced Super Ball-Grid Array (ESBGA™) and is
specified over the commercial (0°C to +70°C) tempera-
ture range. For pin-compatible, lower speed versions of
the MAX108, see the MAX104 (1Gsps) and the MAX106
(600Msps) data sheets.
Applications
Digital RF/IF Signal Processing
Direct RF Downconversion
High-Speed Data Acquisition
Digital Oscilloscopes
High-Energy Physics
Radar/ECM Systems
ATE Systems
Features
o 1.5Gsps Conversion Rate
o 2.2GHz Full-Power Analog Input Bandwidth
o 7.5 Effective Bits at fIN = 750MHz (Nyquist
Frequency)
o ±0.25LSB INL and DNL
o 50
Ω Differential Analog Inputs
o ±250mV Input Signal Range
o On-Chip, +2.5V Precision Bandgap Voltage
Reference
o Latched, Differential PECL Digital Outputs
o Selectable 8:16 Demultiplexer
o Internal Demux Reset Input with Reset Output
o 192-Contact ESBGA Package
o Pin Compatible with MAX104 (1Gsps) and
MAX106 (600Msps)
±5V, 1.5Gsps, 8-Bit ADC with
On-Chip 2.2GHz Track/Hold Amplifier
________________________________________________________________
Maxim Integrated Products
1
19-1492; Rev 0; 9/99
PART
MAX108CHC
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
192 ESBGA
EVALUATION
KIT
AVAILABLE
Ordering Information
ESBGA
TOP VIEW
MAX108
Typical Operating Circuit appears at end of data sheet.
192-Contact ESBGA
Ball Assignment Matrix
ESBGA is a trademark of Amkor/Anam.
PCB land pattern appears at end of data sheet.




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