MAX1448EVKIT Maxim Integrated Products, MAX1448EVKIT Datasheet

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MAX1448EVKIT

Manufacturer Part Number
MAX1448EVKIT
Description
EVAL KIT FOR MAX1448
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX1448EVKIT

Number Of Adc's
1
Number Of Bits
10
Sampling Rate (per Second)
80M
Data Interface
Parallel
Inputs Per Adc
1 Differential
Input Range
±1 V
Power (typ) @ Conditions
120mW @ 80MSPS
Voltage Supply Source
Single Supply
Operating Temperature
0°C ~ 70°C
Utilized Ic / Part
MAX1448
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1448 3V, 10-bit analog-to-digital converter
(ADC) features a fully differential input, a pipelined 10-
stage ADC architecture with wideband track-and-hold
(T/H), and digital error correction incorporating a fully
differential signal path. The ADC is optimized for low-
power, high dynamic performance in imaging and digi-
tal communications applications. The converter
operates from a single 2.7V to 3.6V supply, consuming
only 120mW while delivering a 59dB (typ) signal-to-
noise ratio (SNR) at a 20MHz input frequency. The fully
differential input stage has a -3dB 400MHz bandwidth
and may be operated with single-ended inputs. In addi-
tion to low operating power, the MAX1448 features a
5µA power-down mode for idle periods.
An internal 2.048V precision bandgap reference is
used to set the ADC full-scale range. A flexible refer-
ence structure allows the user to supply a buffered,
direct, or externally derived reference for applications
requiring increased accuracy or a different input volt-
age range.
Lower speed, pin-compatible versions of the MAX1448
are also available. Refer to the MAX1444 data sheet for
a 40Msps version and to the MAX1446 data sheet for a
60Msps version.
The MAX1448 has parallel, offset binary, CMOS-com-
patible three-state outputs that can be operated from
1.7V to 3.6V to allow flexible interfacing. The device is
available in a 5mm x 5mm 32-pin TQFP package and is
specified over the extended industrial (-40°C to +85°C)
temperature range.
19-5400; Rev 3; 9/04
Pin Configuration appears at end of data sheet.
________________________Applications
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.
Ultrasound Imaging
CCD Imaging
Baseband and IF Digitization
Digital Set-Top Boxes
Video Digitizing Applications
________________________________________________________________ Maxim Integrated Products
10-Bit, 80Msps, Single 3.0V, Low-Power
General Description
ADC with Internal Reference
♦ Single 3.0V Operation
♦ Excellent Dynamic Performance
♦ Low Power
♦ Fully Differential Analog Input
♦ Wide 2V
♦ 400MHz -3dB Input Bandwidth
♦ On-Chip 2.048V Precision Bandgap Reference
♦ CMOS-Compatible Three-State Outputs
♦ 32-Pin TQFP Package
♦ Evaluation Kit Available (MAX1448 EV Kit)
CLK
MAX1448EHJ
IN+
IN-
PD
PART
59dB SNR at f
74dBc SFDR at f
40mA (Normal Operation)
5µA (Shutdown Mode)
REFOUT
T/H
REF
P-P
REFIN
Differential Input Voltage Range
REFP COM REFN
REF SYSTEM +
PIPELINE ADC
CONTROL
IN
-40°C to +85°C
TEMP RANGE
BIAS
Ordering Information
= 20MHz
IN
Functional Diagram
= 20MHz
D
E
C
MAX1448
10
PIN-PACKAGE
32 TQFP
DRIVERS
Features
OUTPUT
OE
V
GND
D9–D0
OV
OGND
DD
DD
1

Related parts for MAX1448EVKIT

MAX1448EVKIT Summary of contents

Page 1

... Baseband and IF Digitization Digital Set-Top Boxes Video Digitizing Applications Pin Configuration appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. ADC with Internal Reference ♦ Single 3.0V Operation ♦ ...

Page 2

Single 3.0V, Low-Power ADC with Internal Reference ABSOLUTE MAXIMUM RATINGS GND ...............................................-0.3V to +3. OGND to GND.......................................................-0.3V to +0.3V IN+, IN- to GND........................................................-0. REFIN, REFOUT, REFP, REFN, and COM to ...

Page 3

Single 3.0V, Low-Power ELECTRICAL CHARACTERISTICS (continued 3.0V 2V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor ...

Page 4

Single 3.0V, Low-Power ADC with Internal Reference ELECTRICAL CHARACTERISTICS (continued 3.0V 2V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor ...

Page 5

Single 3.0V, Low-Power ELECTRICAL CHARACTERISTICS (continued 3.0V 2V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND REFIN through a 10kΩ resistor ...

Page 6

Single 3.0V, Low-Power ADC with Internal Reference (V = 3.0V 2.7V, internal reference, differential input at -0.5dB FS wise noted.) FFT PLOT (f = 7.5MHz, 8192-POINT FFT, IN DIFFERENTIAL INPUT) 0 SFDR = ...

Page 7

Single 3.0V, Low-Power (V = 3.0V 2.7V, internal reference, differential input at -0.5dB FS wise noted.) SIGNAL-TO-NOISE + DISTORTION vs. ANALOG INPUT FREQUENCY DIFFERENTIAL SINGLE ENDED ...

Page 8

Single 3.0V, Low-Power ADC with Internal Reference (V = 3.0V 2.7V, internal reference, differential input at -0.5dB FS wise noted.) TOTAL HARMONIC DISTORTION vs. TEMPERATURE - 20MHz IN -64 -68 -72 ...

Page 9

Single 3.0V, Low-Power (V = 3.0V 2.7V, internal reference, differential input at -0.5dB FS wise noted.) DIGITAL SUPPLY CURRENT vs. TEMPERATURE 7.5MHz -40 -15 ...

Page 10

Single 3.0V, Low-Power ADC with Internal Reference PIN NAME Lower Reference. Conversion range is ±(V 1 REFN capacitor. 2 COM Common-Mode Voltage Output. Bypass to GND with a >0.1µF capacitor. Analog Supply Voltage. Bypass to GND with a ...

Page 11

Single 3.0V, Low-Power _______________Detailed Description The MAX1448 uses a 10-stage, fully differential, pipelined architecture (Figure 1) that allows for high- speed conversion while minimizing power consump- tion. Each sample moves through a pipeline stage every half clock-cycle. Counting ...

Page 12

Single 3.0V, Low-Power ADC with Internal Reference The MAX1448 provides three modes of reference oper- ation: • Internal reference mode • Buffered external reference mode • Unbuffered external reference mode In internal reference mode, the internal reference out- ...

Page 13

Single 3.0V, Low-Power 100 f = 25.12MHz AT -0.5dB CLOCK DUTY CYCLE (%) Figure 3a. Spurious Free Dynamic Range vs. Clock Duty Cycle (Differential Input ...

Page 14

Single 3.0V, Low-Power ADC with Internal Reference System Timing Requirements Figure 6 shows the relationship between the clock input, analog input, and data output. The MAX1448 samples at the falling edge of the input clock. Output data is ...

Page 15

Single 3.0V, Low-Power 300Ω 300Ω 5V 0.1µF INPUT MAX4108 0.1µF -5V 300Ω 300Ω Figure 7. Typical Application Circuit Using the Internal Reference 25Ω 22pF 0.1µ N. 2.2µF 0.1µ MINI-CIRCUITS ...

Page 16

Single 3.0V, Low-Power ADC with Internal Reference 3.3V 0.1µF 0.1µF 1 16.2kΩ 2 MAX6062 1µF 3 10Hz LOWPASS FILTER NOTE: ONE FRONT-END REFERENCE CIRCUIT DESIGN MAY BE USED WITH UP TO 1000 ADCs. Figure 10. Buffered External Reference ...

Page 17

Single 3.0V, Low-Power 3.3V 0.1µF 1 2.0V 21.5kΩ 2 MAX6066 21.5kΩ 3 1µF 3.3V 0.1µF 21.5kΩ MAX4254 POWER-SUPPLY BYPASSING. PLACE CAPACITOR AS CLOSE AS POSSIBLE TO THE OP AMP. 21.5kΩ 21.5kΩ NOTE: ONE FRONT-END REFERENCE CIRCUIT DESIGN MAY ...

Page 18

Single 3.0V, Low-Power ADC with Internal Reference Grounding, Bypassing, and Board Layout The MAX1448 requires high-speed board layout design techniques. Locate all bypass capacitors as close to the device as possible, preferably on the same side as the ...

Page 19

Single 3.0V, Low-Power CLK ANALOG INPUT SAMPLED DATA (T/H) HOLD TRACK T/H Figure 12. Track-and-Hold Aperture Timing Spurious-Free Dynamic Range (SFDR) SFDR is the ratio expressed in decibels of the RMS amplitude of the ...

Page 20

Single 3.0V, Low-Power ADC with Internal Reference (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 20 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 32L TQFP, ...

Page 21

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21 © 2004 Maxim Integrated Products ...

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