19-1459; Rev 1; 5/99
±5 V, 1 Gs p s , 8 -Bit ADC w it h
On -Ch ip 2 .2 GHz Tra c k /Ho ld Am p lifie r
MAX104
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX104 PECL-compatible, 1Gsps, 8-bit analog-to-
digital converter (ADC) allows accurate digitizing of
analog signals with bandwidths to 2.2GHz. Fabricated
on Ma xim’s p rop rie ta ry a d va nc e d GST-2 b ip ola r
process, the MAX104 integrates a high-performance
track/hold (T/H) amplifier and a quantizer on a single
monolithic die.
♦ 1Gsps Conversion Rate
♦ 2.2GHz Full-Power Analog Input Bandwidth
♦ >7.5 Effective Bits at f = 500MHz (Nyquist
IN
Frequency)
♦ ±0.25LSB INL and DNL
♦ 50Ω Differential Analog Inputs
♦ ±250mV Input Signal Range
The innovative design of the internal T/H, which has an
exceptionally wide 2.2GHz full-power input bandwidth,
results in high performance (greater than 7.5 effective
bits) at the Nyquist frequency. A fully differential com-
parator design and decoding circuitry reduce out-of-
sequence code errors (thermometer bubbles or sparkle
codes) and provide excellent metastable performance
of one error per 1016 clock cycles. Unlike other ADCs
that can have errors resulting in false full- or zero-scale
outp uts , the MAX104 limits the e rror ma g nitud e to
1LSB.
♦ On-Chip, +2.5V Precision Bandgap Voltage
Reference
♦ Latched, Differential PECL Digital Outputs
♦ Low Error Rate: 10-16 Metastable States at 1Gsps
♦ Selectable 8:16 Demultiplexer
♦ Internal Demux Reset Input with Reset Output
♦ 192-Contact ESBGA Package
The analog input is designed for either differential or
single-ended use with a ±250mV input voltage range.
Dual, differential, PECL-compatible output data paths
ensure easy interfacing and include an 8:16 demulti-
plexer 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 com-
patibility with +3.3V or +5V referenced systems. Control
inputs are provided for interleaving additional MAX104
devices to increase the effective system sampling rate.
Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
PIN-PACKAGE
MAX104CHC
0°C to +70°C
192 ESBGA
1 9 2 -Co n t a c t ES BGA
Ba ll As s ig n m e n t Ma t rix
The MAX104 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.
TOP VIEW
Ap p lic a t io n s
Digital RF/IF Signal Processing
Direct RF Downconversion
High-Speed Data Acquisition
Digital Oscilloscopes
High-Energy Physics
MAX104
Radar/Sonar/ECM Systems
ATE Systems
Typical Operating Circuit appears at end of data sheet.
ESBGA
ESBGA is a trademark of Amkor/Anam.
________________________________________________________________ Maxim Integrated Products
1
For the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.