AD9288BST-80 Analog Devices Inc, AD9288BST-80 Datasheet

IC ADC 8BIT DUAL 80MSPS 48-LQFP

AD9288BST-80

Manufacturer Part Number
AD9288BST-80
Description
IC ADC 8BIT DUAL 80MSPS 48-LQFP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD9288BST-80

Rohs Status
RoHS non-compliant
Number Of Bits
8
Sampling Rate (per Second)
80M
Data Interface
Parallel
Number Of Converters
2
Power Dissipation (max)
207mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-LQFP

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD9288BST-80
Manufacturer:
ADI
Quantity:
390
FEATURES
Dual 8-bit, 40 MSPS, 80 MSPS, and 100 MSPS ADC
Low power: 90 mW at 100 MSPS per channel
On-chip reference and track-and-hold
475 MHz analog bandwidth each channel
SNR = 47 dB @ 41 MHz
1 V p-p analog input range each channel
Single 3.0 V supply operation (2.7 V to 3.6 V)
Standby mode for single-channel operation
Twos complement or offset binary output mode
Output data alignment mode
Pin-compatible 10-bit upgrade available
APPLICATIONS
Battery-powered instruments
Hand-held scopemeters
Low cost digital oscilloscopes
I and Q communications
GENERAL DESCRIPTION
The AD9288 is a dual 8-bit monolithic sampling analog-to-
digital converter with on-chip track-and-hold circuits. It is
optimized for low cost, low power, small size, and ease of use.
The product operates at a 100 MSPS conversion rate with
outstanding dynamic performance over its full operating range.
Each channel can be operated independently.
The ADC requires only a single 3.0 V (2.7 V to 3.6 V) power
supply and an Encode clock for full-performance operation. No
external reference or driver components are required for many
applications. The digital outputs are TTL/CMOS-compatible,
and a separate output power supply pin supports interfacing
with 3.3 V or 2.5 V logic.
Rev. C
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
Information furnished by Analog Devices is believed to be accurate and reliable.
The Encode input is TTL/CMOS-compatible, and the 8-bit
digital outputs can be operated from 3.0 V (2.5 V to 3.6 V)
supplies. User-selectable options offer a combination of standby
modes, digital data formats, and digital data timing schemes. In
standby mode, the digital outputs are driven to a high
impedance state.
Fabricated on an advanced CMOS process, the AD9288 is
available in a 48-lead surface-mount plastic package (7 mm ×
7 mm, 1.4 mm LQFP) specified over the industrial temperature
range (–40°C to +85°C). The AD9288 is pin-compatible with
the 10-bit AD9218, facilitating future system migrations.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
REF
REF
REF
ENC
ENC
A
A
A
A
OUT
IN
IN
IN
IN
IN
IN
A
A
A
B
B
B
A
B
FUNCTIONAL BLOCK DIAGRAM
TIMING
TIMING
8-Bit, 40/80/100 MSPS
© 2004 Analog Devices, Inc. All rights reserved.
T/H
T/H
Dual A/D Converter
AD9288
Figure 1.
V
ADC
ADC
REF
D
V
DD
GND
8
8
V
8
8
DD
www.analog.com
AD9288
D7
SELECT 1
SELECT 2
DATA FORMAT
SELECT
D7
A
B
–D0
–D0
A
B

Related parts for AD9288BST-80

AD9288BST-80 Summary of contents

Page 1

FEATURES Dual 8-bit, 40 MSPS, 80 MSPS, and 100 MSPS ADC Low power 100 MSPS per channel On-chip reference and track-and-hold 475 MHz analog bandwidth each channel SNR = MHz 1 V p-p ...

Page 2

AD9288 TABLE OF CONTENTS Specifications..................................................................................... 3 Explanation of Test Levels ........................................................... 4 Timing Diagrams.......................................................................... 5 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin Configuration and Function Descriptions............................. 8 Typical Performance Characteristics ............................................. 9 Test Circuits..................................................................................... 12 Terminology .................................................................................... 13 Theory ...

Page 3

... VI Logic 0 Voltage Full VI POWER SUPPLY 4 Power Dissipation Full Standby Dissipation Full VI 25°C I Power Supply Rejection Ratio (PSRR) AD9288BST-100 AD9288BST-80 Min Typ Max Min Typ 8 8 ± 0.5 +1.25 ± 0.5 1.50 ± 0.50 +1.25 ± 0.50 1.50 Guaranteed Guaranteed –6 ± ...

Page 4

... II 100% production tested at 25 III Sample tested only. IV Parameter is guaranteed by design and characterization testing. V Parameter is a typical value only. VI 100% production tested at 25 100% production tested at temperature extremes for military devices. AD9288BST-100 AD9288BST-80 Min Typ Max Min Typ 47.5 47.5 47.5 ...

Page 5

TIMING DIAGRAMS SAMPLE ENCODE –D0 DATA N – –D0 DATA N – Figure 2. Normal Operation, Same Clock (S1 ...

Page 6

AD9288 SAMPLE SAMPLE ENCODE A ENCODE B D7 – DATA N – – DATA N – 9 Figure 4. Data ...

Page 7

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Analog Inputs Digital Inputs VREF IN Digital Output Current Operating Temperature Storage Temperature Maximum Junction Temperature Maximum Case Temperature Thermal Impedance θ ja ESD CAUTION ESD (electrostatic discharge) sensitive ...

Page 8

AD9288 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin No. Name Description 1, 12, 16, 27, 29, GND Ground 32, 34 Analog Input for Channel Analog Input for Channel A (Complementary). ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS 0 ENCODE = 100MSPS A = 10.3MHz IN –10 SNR = 48.52dB SINAD = 48.08dB –20 SECOND HARMONIC = –62.54dBc THIRD HARMONIC = –63.56dBc –30 –40 –50 –60 –70 –80 –90 SAMPLE Figure 6. Spectrum ...

Page 10

AD9288 10.3MHz IN SNR SINAD MSPS Figure 12. SINAD/SNR vs. Encode Rate 50 SNR SINAD 7.0 6.5 6.0 5.5 5.0 4.5 ENCODE ...

Page 11

CODE Figure 18. Integral Nonlinearity 1.00 0.75 0.50 0.25 0 –0.25 –0.50 –0.75 –1.00 CODE Figure 19. Differential Nonlinearity 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0 0.25 0.50 Figure 20. ...

Page 12

AD9288 TEST CIRCUITS V D 28kΩ 12kΩ Figure 21. Equivalent Analog Input Circuit BIAS REF IN Figure 22. Equivalent Reference Input Circuit ENCODE Figure 23. Equivalent Encode Input Circuit 28kΩ 12kΩ ...

Page 13

TERMINOLOGY Analog Bandwidth (Small Signal) The analog input frequency at which the spectral power of the fundamental frequency (as determined by the FFT analysis) is reduced by 3 dB. Aperture Delay The delay between a 50% crossing of Encode and ...

Page 14

AD9288 THEORY OF OPERATION The AD9288 ADC architecture is a bit-per-stage pipeline-type converter utilizing switch capacitor techniques. These stages determine the 5 MSBs and drive a 3-bit flash. Each stage provides sufficient overlap and error correction, allowing optimization of comparator ...

Page 15

AD9218/AD9288 CUSTOMER PCB BOM Table 5. Bill of Materials No. Qty. Reference Designator 1 29 C1, C3-C15, C20, C21, C24, C25, C27, C30–C35, C39–C42 2 2 C2, C36 3 7 C16–C19, C26, C37, C38 4 28 E1, E2, E3, E4, ...

Page 16

AD9288 EVALUATION BOARD The AD9218/AD9288 customer evaluation board offers an easy way to test the AD9218 or the AD9288. The compatible pinout of the two parts facilitates the use of one PCB for testing either part. The PCB requires power ...

Page 17

(MSB ...

Page 18

AD9288 Figure 27. PCB Schematic (Continued) Rev Page 00585-027 ...

Page 19

Figure 28. Top Silkscreen Figure 29. Top Routing Figure 30. Ground Plane Rev Page AD9288 Figure 31. Split Power Plane Figure 32. Bottom Routing Figure 33. Bottom Silkscreen ...

Page 20

AD9288 TROUBLESHOOTING If the board does not seem to be working correctly, try the following: • Verify power at the IC pins. • Check that all jumpers are in the correct position for the desired mode of operation. • Verify ...

Page 21

... Model Temperature Range –40°C to +85°C AD9288BST-40 1 AD9288BSTZ-40 –40°C to +85°C 1 –40°C to +85°C AD9288BSTZRL-40 –40°C to +85°C AD9288BST-80 1 AD9288BSTZ-80 –40°C to +85°C –40°C to +85°C AD9288BST-100 1 AD9288BSTZ-100 –40°C to +85°C AD9288/PCB Pb-free part. ...

Page 22

AD9288 NOTES Rev Page ...

Page 23

NOTES Rev Page AD9288 ...

Page 24

AD9288 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00585–0–12/04(C) Rev Page ...

Related keywords