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ADS8598H 18-Bit, 500-kSPS, 8-Channel, Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply
SBAS829
September 2017
ADS8598H
PRODUCTION DATA.
CONTENTS
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ADS8598H 18-Bit, 500-kSPS, 8-Channel, Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements: CONVST Control
6.7
Timing Requirements: Data Read Operation
6.8
Timing Requirements: Parallel Data Read Operation, CS and RD Tied Together
6.9
Timing Requirements: Parallel Data Read Operation, CS and RD Separate
6.10
Timing Requirements: Serial Data Read Operation
6.11
Timing Requirements: Byte Mode Data Read Operation
6.12
Timing Requirements: Oversampling Mode
6.13
Timing Requirements: Exit Standby Mode
6.14
Timing Requirements: Exit Shutdown Mode
6.15
Switching Characteristics: CONVST Control
6.16
Switching Characteristics: Parallel Data Read Operation, CS and RD Tied Together
6.17
Switching Characteristics: Parallel Data Read Operation, CS and RD Separate
6.18
Switching Characteristics: Serial Data Read Operation
6.19
Switching Characteristics: Byte Mode Data Read Operation
6.20
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Inputs
7.3.2
Analog Input Impedance
7.3.3
Input Clamp Protection Circuit
7.3.4
Programmable Gain Amplifier (PGA)
7.3.5
Third-Order, Low-Pass Filter (LPF)
7.3.6
ADC Driver
7.3.7
Digital Filter and Noise
7.3.8
Reference
7.3.8.1
Internal Reference
7.3.8.2
External Reference
7.3.8.3
Supplying One VREF to Multiple Devices
7.3.9
ADC Transfer Function
7.3.10
ADS8598H Device Family Comparison
7.4
Device Functional Modes
7.4.1
Device Interface: Pin Description
7.4.1.1
REFSEL (Input)
7.4.1.2
RANGE (Input)
7.4.1.3
STBY (Input)
7.4.1.4
PAR/SER/BYTE SEL (Input)
7.4.1.5
CONVSTA, CONVSTB (Input)
7.4.1.6
RESET (Input)
7.4.1.7
RD/SCLK (Input)
7.4.1.8
CS (Input)
7.4.1.9
OS[2:0]
7.4.1.10
BUSY (Output)
7.4.1.11
FRSTDATA (Output)
7.4.1.12
DB15/BYTE SEL
7.4.1.13
DB14/HBEN
7.4.1.14
DB[13:9]
7.4.1.15
DB8/DOUTB
7.4.1.16
DB7/DOUTA
7.4.1.17
DB[6:0]
7.4.2
Device Modes of Operation
7.4.2.1
Power-Down Modes
7.4.2.1.1
Standby Mode
7.4.2.1.2
Shutdown Mode
7.4.2.2
Conversion Control
7.4.2.2.1
Simultaneous Sampling on All Input Channels
7.4.2.2.2
Simultaneous Sampling Two Sets of Input Channels
7.4.2.3
Data Read Operation
7.4.2.3.1
Parallel Data Read
7.4.2.3.2
Parallel Byte Data Read
7.4.2.3.3
Serial Data Read
7.4.2.3.4
Data Read During Conversion
7.4.2.4
Oversampling Mode of Operation
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
8-Channel, Data Acquisition System (DAQ) for Power Automation
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curve
8.2.2
Extending the Analog Input Voltage Range
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
Performance Results
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Documentation Support
11.1.1
Related Documentation
11.2
Receiving Notification of Documentation Updates
11.3
Community Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
PM|64
MTQF008B
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbas829_oa
sbas829_pm
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