AD7265BSUZ Analog Devices Inc, AD7265BSUZ Datasheet - Page 2

• Manufacturer Part Number: AD7265BSUZ
• Description: IC,Data Acquisition System,3-CHANNEL,12-BIT,TQFP,32PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of AD7265BSUZ

• Design Resources: AD7265 in Differential and Single-Ended Configurations Using AD8022 (CN0048)
• Number Of Bits: 12
• Sampling Rate (per Second): 1M
• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 21mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP, 32-VQFP
• Number Of Elements: 2
• Resolution: 12Bit
• Architecture: SAR
• Sample Rate: 1MSPS
• Input Polarity: Unipolar
• Input Type: Voltage
• Rated Input Volt: 2.5/5V
• Differential Input: Yes
• Power Supply Requirement: Analog and Digital
• Single Supply Voltage (typ): 3/5V
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.25V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Power Dissipation: 21mW
• Differential Linearity Error: -0.99LSB/1.5LSB
• Integral Nonlinearity Error: ±1.5LSB
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7265CB - BOARD EVALUATION FOR AD7265
• Lead Free Status / Rohs Status: Compliant

AD7265
TABLE OF CONTENTS
Features .............................................................................................. 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 9
Terminology .................................................................................... 11
Theory of Operation ...................................................................... 13
REVISION HISTORY
11/06—Rev. 0 to Rev. A
Changes to Format .............................................................Universal
Changes to Reference Input/Output Section ................................ 4
Changes to Table 4............................................................................ 7
Changes to Terminology Section.................................................. 11
Changes to Figure 24 and Differential Mode Section................ 15
Changes to Figure 29...................................................................... 16
Changes to AD7265 to ADSP-BF53x Section............................. 24
Updated Outline Dimensions ....................................................... 27
Changes to Ordering Guide .......................................................... 27
Timing Specifications .................................................................. 5
ESD Caution.................................................................................. 6
Circuit Information.................................................................... 13
Converter Operation.................................................................. 13
Analog Input Structure.............................................................. 13
Analog Inputs.............................................................................. 14
Analog Input Selection .............................................................. 17
Output Coding............................................................................ 17
Transfer Functions...................................................................... 18
Rev. A | Page 2 of 28
Modes of Operation ....................................................................... 19
Serial Interface ................................................................................ 22
Microprocessor Interfacing........................................................... 23
Application Hints ........................................................................... 26
Outline Dimensions ....................................................................... 27
4/05—Revision 0: Initial Version
Digital Inputs .............................................................................. 18
V
Normal Mode.............................................................................. 19
Partial Power-Down Mode ....................................................... 19
Full Power-Down Mode ............................................................ 20
Power-Up Times......................................................................... 21
Power vs. Throughput Rate....................................................... 21
AD7265 to ADSP218x ............................................................... 23
AD7265 to ADSP-BF53x ........................................................... 24
AD7265 to TMS320C541 .......................................................... 24
AD7265 to DSP563xx ................................................................ 25
Grounding and Layout .............................................................. 26
PCB Design Guidelines for LFCSP .......................................... 26
Evaluating the AD7265 Performance ...................................... 26
Ordering Guide .......................................................................... 27
DRIVE
............................................................................................ 18