SBAS438C
May 2008 – November 2019
DAC9881
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
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: AVDD = 5 V
6.6
Electrical Characteristics: AVDD = 2.7 V
6.7
Timing Requirements—Standalone Operation Without SDO
6.8
Timing Requirements—Standalone Operation With SDO and Daisy-Chain Mode
6.9
Typical Characteristics: AVDD = 5 V
6.10
Typical Characteristics: AVDD = 2.7 V
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Output
7.3.2
Reference Inputs
7.3.3
Output Range
7.3.4
Input Data Format
7.3.5
Hardware Reset
7.3.6
Power-On Reset
7.3.6.1
Program Reset Value
7.3.7
Power Down
7.3.8
Double-Buffered Interface
7.3.8.1
Load DAC Pin (LDAC)
7.3.8.1.1
Synchronous Mode
7.3.8.1.2
Asynchronous Mode
7.3.9
1.8-V to 5-V Logic Interface
7.3.10
Power-Supply Sequence
7.4
Device Functional Modes
7.4.1
Serial Interface
7.4.1.1
Input Shift Register
7.4.1.1.1
Stand-Alone Mode
7.4.1.1.2
Daisy-Chain Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Bipolar Operation Using the DAC9881
8.2
Typical Application
8.2.1
DAC9881 Sample-and-Hold Circuit
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.3
System Example
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
Support Resources
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
Glossary
12
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGE|24
MPQF124G
Thermal pad, mechanical data (Package|Pins)
RGE|24
QFND008AA
Orderable Information
sbas438c_oa
sbas438c_pm
6.10
Typical Characteristics: AV
DD
= 2.7 V
at T
A
= 25°C, V
REFH
= 2.5 V, V
REFL
= 0 V, and gain = 1X mode (unless otherwise noted)
Figure 44.
Linearity Error vs Digital Input Code
Figure 46.
Linearity Error vs Digital Input Code
Figure 48.
Linearity Error vs Digital Input Code
Figure 50.
Linearity Error vs Reference Voltage
Figure 52.
AVDD Supply Current vs Temperature
Gain = 2X mode
Figure 54.
Reference Current vs Digital Input Code
Figure 56.
Output Voltage vs Drive Current Capability (Operation Near AV
DD
Rail)
Figure 58.
Large-Signal Settling Time
Figure 60.
Large-Signal Settling Time
Figure 62.
Major Carry Glitch
Figure 45.
Differential Linearity Error vs Digital Input Code
Figure 47.
Differential Linearity Error vs Digital Input Code
Figure 49.
Differential Linearity Error vs Digital Input Code
Figure 51.
Differential Linearity Error vs Reference Voltage
Figure 53.
Reference Current vs Digital Input Code
Figure 55.
Output Voltage vs Drive Current Capability
Figure 57.
Output Voltage vs Drive Current Capability (Operation Near AGND Rail)
Figure 59.
Large-Signal Settling Time
Figure 61.
Large-Signal Settling Time
Figure 63.
Major Carry Glitch