SBAS761A
February 2020 – February 2020
ADS8355
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Typical Block Diagram
4
Revision History
5
Pin Configuration and Functions
Pin 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
Table 1.
Timing Requirements
Table 2.
Switching Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Reference
7.3.2
Analog Inputs
7.3.2.1
Analog Input: Full-Scale Range Selection
7.3.2.2
Analog Input: Single-Ended and Pseudo-Differential Configurations
7.3.3
Transfer Function
7.4
Device Functional Modes
7.4.1
Conversion Data Read: Dual-SDO Mode (Default)
7.4.2
Conversion Data Read: Single-SDO Mode
7.4.3
Low-Power Modes
7.4.3.1
STANDBY Mode
7.4.3.2
PD (Power-Down) Mode
7.5
Programming
7.5.1
Register Read/Write Operation
7.6
Register Map
7.6.1
ADS8355 Registers
7.6.1.1
PD_STANDBY Register (Offset = 4h) [reset = 0h]
Table 9.
PD_STANDBY Register Field Descriptions
7.6.1.2
PD_KEY Register (Offset = 5h) [reset = 0h]
Table 10.
PD_KEY Register Field Descriptions
7.6.1.3
SDO_CTRL Register (Offset = Dh) [reset = 0h]
Table 11.
SDO_CTRL Register Field Descriptions
7.6.1.4
DATA_OUT_CTRL Register (Offset = 11h) [reset = 0h]
Table 12.
DATA_OUT_CTRL Register Field Descriptions
7.6.1.5
REF_SEL Register (Offset = 20h) [reset = 0h]
Table 13.
REF_SEL Register Field Descriptions
7.6.1.6
REFDAC_A_LSB Register (Offset = 24h) [reset = 0h]
Table 14.
REFDAC_A_LSB Register Field Descriptions
7.6.1.7
REFDAC_A_MSB Register (Offset = 25h) [reset = 0h]
Table 15.
REFDAC_A_MSB Register Field Descriptions
7.6.1.8
REFDAC_B_LSB Register (Offset = 26h) [reset = 0h]
Table 16.
REFDAC_B_LSB Register Field Descriptions
7.6.1.9
REFDAC_B_MSB Register (Offset = 27h) [reset = 0h]
Table 17.
REFDAC_B_MSB Register Field Descriptions
7.6.1.10
INPUT_CONFIG Register (Offset = 28h) [reset = 0h]
Table 18.
INPUT_CONFIG Register Field Descriptions
8
Application and Implementation
8.1
Application Information
8.1.1
Input Amplifier Selection
8.1.2
Charge Kickback Filter
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Receiving Notification of Documentation Updates
11.4
Community Resources
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RTE|16
MPQF149D
Thermal pad, mechanical data (Package|Pins)
RTE|16
QFND298F
Orderable Information
sbas761a_oa
sbas761a_pm
1
Features
1-MSPS throughput, no latency output
Simultaneous sampling of two channels
Supports single-ended and pseudo-differential inputs
Excellent DC and AC performance:
16-bit NMC DNL, ±1-LSB INL
88-dB SNR, –97-dB THD
Dual, programmable,
2.5-V internal reference
Fully-specified over the extended industrial temperature range: –40°C to +125°C
Small footprint:
WQFN-16 (3-mm × 3-mm)