AD7655ASTZ Analog Devices Inc, AD7655ASTZ Datasheet - Page 2

• Manufacturer Part Number: AD7655ASTZ
• Description: IC ADC 16BIT 1MSPS QUAD 48-LQFP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7655ASTZ

• Data Interface: Serial, Parallel
• Number Of Bits: 16
• Sampling Rate (per Second): 1M
• Number Of Converters: 1
• Power Dissipation (max): 135mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Resolution (bits): 16bit
• Sampling Rate: 1MSPS
• Input Channel Type: Single Ended
• Supply Voltage Range - Analog: 4.75V To 5.25V
• Package: 48LQFP
• Resolution: 16 Bit
• Architecture: SAR
• Number Of Adcs: 1
• Number Of Analog Inputs: 4
• Digital Interface Type: Parallel|Serial (2-Wire, SPI, QSPI, Microwire)
• Input Type: Voltage
• Signal To Noise Ratio: 86(Typ) dB
• Polarity Of Input Voltage: Unipolar
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7655CBZ - BOARD EVALUATION FOR AD7655
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD7655
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Function Descriptions............................. 8
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 12
Application Information................................................................ 14
REVISION HISTORY
9/05—Rev. A to Rev. B
Changes to General Description .................................................... 1
Changes to Specifications ................................................................ 3
Changes to Timing Specifications .................................................. 5
Changes to Typical Performance Characteristics....................... 13
Changes to Figure 17...................................................................... 15
Added Table 8.................................................................................. 17
Changes to Figure 28...................................................................... 21
Updated Outline Dimensions ....................................................... 26
Changes to Ordering Guide .......................................................... 27
ESD Caution.................................................................................. 7
Circuit Information.................................................................... 14
Modes of Operation ................................................................... 14
Transfer Functions...................................................................... 14
Typical Connection Diagram ................................................... 16
Analog Inputs.............................................................................. 16
Input Channel Multiplexer........................................................ 16
Rev. B | Page 2 of 28
Application Hints ........................................................................... 25
Outline Dimensions ....................................................................... 26
12/04—Rev. 0 to Rev. A
Changes to Figure 17...................................................................... 15
Changes to Figure 18...................................................................... 16
Changes to Voltage Reference Input section .............................. 17
Changes to Conversion Control section ..................................... 18
Changes to Digital Interface section............................................ 18
Updated Outline Dimensions....................................................... 25
11/02—Revision 0: Initial Version
Driver Amplifier Choice ........................................................... 16
Voltage Reference Input ............................................................ 17
Power Supply............................................................................... 17
Power Dissipation....................................................................... 17
Conversion Control ................................................................... 18
Digital Interface.......................................................................... 18
Parallel Interface......................................................................... 18
Serial Interface ............................................................................ 20
Master Serial Interface............................................................... 20
Slave Serial Interface .................................................................. 22
Microprocessor Interfacing....................................................... 24
SPI Interface (ADSP-219
Layout .......................................................................................... 25
Evaluating the AD7655 Performance ...................................... 25
Ordering Guide .......................................................................... 27
X
) ....................................................... 24