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SAM L21 Family Data Sheet SAM L21

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41 Operational Amplifier Controller (OPAMP)
41.6 Functional Description
41.6.13 Input Connection to DAC

SAM L21

Introduction
Features
1 Description
2 Configuration Summary
3 Ordering Information
4 Block Diagram
5 Pinout
6 Signal Descriptions List
7 I/O Multiplexing and Considerations
8 Analog Connections of Peripherals
9 Power Supply and Start-Up Considerations
10 Product Mapping
11 Memories
12 Processor and Architecture
13 PAC - Peripheral Access Controller
14 Peripherals Configuration Summary
15 DSU - Device Service Unit
16 Clock System
17 GCLK - Generic Clock Controller
18 MCLK – Main Clock
19 RSTC – Reset Controller
20 PM – Power Manager
21 OSCCTRL – Oscillators Controller
22 OSC32KCTRL – 32KHz Oscillators Controller
23 SUPC – Supply Controller
24 WDT – Watchdog Timer
25 RTC – Real-Time Counter
26 DMAC – Direct Memory Access Controller
27 EIC – External Interrupt Controller
28 NVMCTRL – Non-Volatile Memory Controller
29 PORT - I/O Pin Controller
30 EVSYS – Event System
31 SERCOM – Serial Communication Interface
32 SERCOM USART – SERCOM Universal Synchronous and Asynchronous Receiver and Transmitter
33 SERCOM SPI – SERCOM Serial Peripheral Interface
34 SERCOM I²C – SERCOM Inter-Integrated Circuit
35 TC – Timer/Counter
36 TCC – Timer/Counter for Control Applications
37 TRNG – True Random Number Generator
38 AES – Advanced Encryption Standard
39 USB – Universal Serial Bus
40 CCL – Configurable Custom Logic
41 Operational Amplifier Controller (OPAMP)
42 ADC – Analog-to-Digital Converter
43 AC – Analog Comparators
44 DAC – Digital-to-Analog Converter
45 PTC - Peripheral Touch Controller
46 Electrical Characteristics
47 Electrical Characteristics - Extended Temperature Range 105°C
48 Typical Characteristics
49 Appendix A
50 Packaging Information
51 Schematic Checklist
52 Conventions
53 Acronyms and Abbreviations
54 Datasheet Revision History
Microchip Information

41.6.13 Input Connection to DAC

The DAC can be used as a reference. This is configured by the corresponding OPAMPCTRLx.MUXPOS and OPAMPCTRLx.RES1MUX bits.

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