SBAS614C
May 2013 – March 2019
ADS8866
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
No Separate LDO Required for the ADC Supply
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements: 3-Wire Operation
7.7
Timing Requirements: 4-Wire Operation
7.8
Timing Requirements: Daisy-Chain
7.9
Typical Characteristics
8
Parameter Measurement Information
8.1
Equivalent Circuits
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Analog Input
9.3.2
Reference
9.3.3
Clock
9.3.4
ADC Transfer Function
9.4
Device Functional Modes
9.4.1
CS Mode
9.4.1.1
3-Wire CS Mode
9.4.1.2
4-Wire CS Mode
9.4.2
Daisy-Chain Mode
9.4.2.1
Daisy-Chain Mode
10
Application and Implementation
10.1
Application Information
10.1.1
ADC Reference Driver
10.1.2
ADC Input Driver
10.1.2.1
Input Amplifier Selection
10.1.2.2
Charge-Kickback Filter
10.2
Typical Applications
10.2.1
DAQ Circuit for a 10-µs, Full-Scale Step Response
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.2
DAQ Circuit for Lowest Distortion and Noise Performance at 100 kSPS
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.3
Ultralow-Power DAQ Circuit at 10 kSPS
10.2.3.1
Design Requirements
10.2.3.2
Detailed Design Procedure
11
Power Supply Recommendations
11.1
Power-Supply Decoupling
11.2
Power Saving
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Documentation Support
13.1.1
Related Documentation
13.2
Receiving Notification of Documentation Updates
13.3
Community Resources
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DGS|10
MPDS035C
DRC|10
MPDS117L
Thermal pad, mechanical data (Package|Pins)
DRC|10
QFND213I
Orderable Information
sbas614c_oa
sbas614c_pm
13.1.1
Related Documentation
For related documentation see the following:
Texas Instruments,
OPAx333 1.8-V, micropower, CMOS operational amplifiers, zero-drift series
data sheet
Texas Instruments,
THS452x Very Low power, negative rail input, rail-to-rail output, fully differential amplifier
data sheet
Texas Instruments,
THS4281 very low-power, high-speed, rail-to-rail input and output voltage-feedback operational amplifier
data sheet
Texas Instruments,
1-MHz, micro-power, low-noise, RRIO,1.8-V CMOS operational amplifier precision value line series
data sheet
Texas Instruments,
OPAx350 High-speed, single-supply, rail-to-rail operational amplifiers microamplifier series
data sheet
Texas Instruments,
1.8V, 7MHz, 90dB CMRR, single-supply, rail-to-rail I/O operational amplifier
data sheet
Texas Instruments,
18-bit data acquisition (DAQ) block optimized for 1-μs full-scale step response
reference guide
Texas Instruments,
18-Bit, 1-MSPS data acquisition (DAQ) block optimized for lowest power
reference guide
Texas Instruments,
18 bit, 10kSPS data acquisition (DAQ) block optimized for ultra low power < 1 mW
reference guide
Texas Instruments,
18-Bit, 1MSPS data acquisition block (DAQ) optimized for lowest distortion and noise
reference guide
Texas Instruments,
Ultra Low Power, 18 bit precision ECG data acquisition system
reference guide