MAX109 Datasheet, PDF (1/29 Pages) Maxim Integrated Products – 8-Bit, 2.2Gsps ADC with Track/Hold Amplifier and 1:4 Demultiplexed LVDS Outputs

19-0795; Rev 0; 4/07
EVAALVUAAILTAIOBNLEKIT
8-Bit, 2.2Gsps ADC with Track/Hold Amplifier
and 1:4 Demultiplexed LVDS Outputs
General Description
The MAX109, 2.2Gsps, 8-bit, analog-to-digital converter
(ADC) enables the accurate digitizing of analog signals
with frequencies up to 2.5GHz. Fabricated on an
advanced SiGe process, the MAX109 integrates a high-
performance track/hold (T/H) amplifier, a quantizer, and
a 1:4 demultiplexer on a single monolithic die. The
MAX109 also features adjustable offset, full-scale volt-
age (via REFIN), and sampling instance allowing multi-
ple ADCs to be interleaved in time.
The innovative design of the internal T/H amplifier,
which has a wide 2.8GHz full-power bandwidth,
enables a flat-frequency response through the second
Nyquist region. This results in excellent ENOB perfor-
mance of 6.9 bits. A fully differential comparator design
and decoding circuitry reduce out-of-sequence code
errors (thermometer bubbles or sparkle codes) and
provide excellent metastability performance (10¹⁴ clock
cycles). This design guarantees no missing codes.
The analog input is designed for both differential and
single-ended use with a 500mV_P-P input-voltage range.
The output data is in standard LVDS format, and is
demultiplexed by an internal 1:4 demultiplexer. The
LVDS outputs operate from a supply-voltage range of
3V to 3.6V for compatibility with single 3V-reference
systems. Control inputs are provided for interleaving
additional MAX109 devices to increase the effective
system-sampling rate.
The MAX109 is offered in a 256-pin Super Ball-Grid Array
(SBGA) package and is specified over the extended
industrial temperature range (-40°C to +85°C).
Applications
Radar Warning Receivers (RWR)
Light Detection and Ranging (LIDAR)
Digital RF/IF Signal Processing
Electronic Warfare (EW) Systems
High-Speed Data-Acquisition Systems
Digital Oscilloscopes
High-Energy Physics Instrumentation
ATE Systems
Features
♦ Ultra-High-Speed, 8-Bit, 2.2Gsps ADC
♦ 2.8GHz Full-Power Analog Input Bandwidth
♦ Excellent Signal-to-Noise Performance
44.6dB SNR at f_IN = 300MHz
44dB SNR at f_IN = 1600MHz
♦ Superior Dynamic Range at High-IF
61.7dBc SFDR at f_IN = 300MHz
50.3dBc SFDR at f_IN = 1600MHz
-60dBc IM3 at f_IN1 = 1590MHz and f_IN2 = 1610MHz
♦ 500mV_P-P Differential Analog Inputs
♦ 6.8W Typical Power Including the Demultiplexer
♦ Adjustable Range for Offset, Full-Scale, and
Sampling Instance
♦ 50Ω Differential Analog Inputs
♦ 1:4 Demultiplexed LVDS Outputs
♦ Interfaces Directly to Common FPGAs with DDR
and QDR Modes
Ordering Information
PART
TEMP RANGE
MAX109EHF-D -40°C to +85°C
D = Dry pack.
PIN-
PACKAGE
256 SBGA
PKG
CODE
H256-1
Pin Configuration
TOP VIEW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
A
B
C
D
E
F
G
H
J
MAX109
K
256-PIN
L
SBGA PACKAGE
M
N
P
R
T
U
V
W
Y
256-PIN SUPER BALL-GRID ARRAY
________________________________________________________________ Maxim Integrated Products 1
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.