MAX1193 Datasheet, PDF (1/26 Pages) Maxim Integrated Products – Ultra-Low-Power, 45Msps, Dual 8-Bit ADC

19-2794; Rev 1; 9/03
Ultra-Low-Power, 45Msps, Dual 8-Bit ADC
General Description
The MAX1193 is an ultra-low-power, dual, 8-bit,
45Msps analog-to-digital converter (ADC). The device
features two fully differential wideband track-and-hold
(T/H) inputs. These inputs have a 440MHz bandwidth
and accept fully differential or single-ended signals.
The MAX1193 delivers a typical signal-to-noise and dis-
tortion (SINAD) of 48.5dB at an input frequency of
5.5MHz and a sampling rate of 45Msps while consum-
ing only 57mW. This ADC operates from a 2.7V to 3.6V
analog power supply. A separate 1.8V to 3.6V supply
powers the digital output driver. In addition to ultra-low
operating power, the MAX1193 features three power-
down modes to conserve power during idle periods.
Excellent dynamic performance, ultra-low power, and
small size make the MAX1193 ideal for applications in
imaging, instrumentation, and digital communications.
An internal 1.024V precision bandgap reference sets
the full-scale range of the ADC to ±0.512V. A flexible
reference structure allows the MAX1193 to use its inter-
nal reference or accept an externally applied reference
for applications requiring increased accuracy.
The MAX1193 features parallel, multiplexed, CMOS-
compatible tri-state outputs. The digital output format is
offset binary. A separate digital power input accepts a
voltage from 1.8V to 3.6V for flexible interfacing to dif-
ferent logic levels. The MAX1193 is available in a 5mm
× 5mm, 28-pin thin QFN package, and is specified for
the extended industrial (-40°C to +85°C) temperature
range.
For higher sampling frequency applications, refer to the
MAX1195–MAX1198 dual 8-bit ADCs. Pin-compatible
versions of the MAX1193 are also available. Refer to the
MAX1191 data sheet for 7.5Msps, and the MAX1192
data sheet for 22Msps.
Applications
Ultrasound and Medical Imaging
IQ Baseband Sampling
Battery-Powered Portable Instruments
Low-Power Video
WLAN, Mobile DSL, WLL Receiver
Features
o Ultra-Low Power
57mW (Normal Operation: 45Msps)
0.3µW (Shutdown Mode)
o Excellent Dynamic Performance
48.5dB/48.3dB SNR at f_IN = 5.5MHz/100MHz
70dBc/68dBc SFDR at f_IN = 5.5MHz/100MHz
o 2.7V to 3.6V Single Analog Supply
o 1.8V to 3.6V TTL/CMOS-Compatible Digital
Outputs
o Fully Differential or Single-Ended Analog Inputs
o Internal/External Reference Option
o Multiplexed CMOS-Compatible Tri-State Outputs
o 28-Pin Thin QFN Package
o Evaluation Kit Available (Order MAX1193EVKIT)
Ordering Information
PART
TEMP RANGE
MAX1193ETI-T
-40°C to +85°C
*EP = Exposed paddle.
PIN-PACKAGE
28 Thin QFN-EP*
(5mm x 5mm)
TOP VIEW
Pin Configuration
INA- 1
INA+ 2
GND 3
CLK 4
GND 5
INB+ 6
INB- 7
MAX1193
EXPOSED PADDLE
21 D0
20 D1
19 D2
18 D3
17 A/B
16 D4
15 D5
5mm x 5mm THIN QFN
________________________________________________________________ Maxim Integrated Products 1
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1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.