MAX108 Maxim, MAX108 Datasheet
MAX108
Manufacturer Part Number
MAX108
Description
5V / 1.5Gsps / 8-Bit ADC with On-Chip 2.2GHz Track/Hold Amplifier
Manufacturer
Maxim
Datasheet
1.MAX108.pdf
(32 pages)
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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.
Typical Operating Circuit appears at end of data sheet.
19-1492; Rev 0; 9/99
ESBGA is a trademark of Amkor/Anam.
For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Digital RF/IF Signal Processing
Direct RF Downconversion
High-Speed Data Acquisition
Digital Oscilloscopes
High-Energy Physics
Radar/ECM Systems
ATE Systems
________________________________________________________________ Maxim Integrated Products
General Description
On-Chip 2.2GHz Track/Hold Amplifier
Applications
±5V, 1.5Gsps, 8-Bit ADC with
PCB land pattern appears at end of data sheet.
MAX108CHC
1.5Gsps Conversion Rate
2.2GHz Full-Power Analog Input Bandwidth
7.5 Effective Bits at f
Frequency)
±0.25LSB INL and DNL
50Ω Differential Analog Inputs
±250mV Input Signal Range
On-Chip, +2.5V Precision Bandgap Voltage
Reference
Latched, Differential PECL Digital Outputs
Selectable 8:16 Demultiplexer
Internal Demux Reset Input with Reset Output
192-Contact ESBGA Package
Pin Compatible with MAX104 (1Gsps) and
MAX106 (600Msps)
PART
TOP VIEW
Ball Assignment Matrix
TEMP. RANGE
0°C to +70°C
Ordering Information
192-Contact ESBGA
IN
MAX108
ESBGA
= 750MHz (Nyquist
192 ESBGA
PIN-PACKAGE
Features
1
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