JAJSNI4 December   2021 DAC11001B

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics
    6. 6.6  Timing Requirements: Write, 4.5 V ≤ DVDD ≤ 5.5 V
    7. 6.7  Timing Requirements: Write, 2.7 V ≤ DVDD < 4.5 V
    8. 6.8  Timing Requirements: Read and Daisy-Chain Write, 4.5 V ≤ DVDD ≤ 5.5 V
    9. 6.9  Timing Requirements: Read and Daisy-Chain Write, 2.7 V ≤ DVDD < 4.5 V
    10. 6.10 Timing Diagrams
    11. 6.11 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital-to-Analog Converter Architecture
      2. 7.3.2 External Reference
      3. 7.3.3 Output Buffers
      4. 7.3.4 Internal Power-On Reset (POR)
      5. 7.3.5 Temperature Drift and Calibration
      6. 7.3.6 DAC Output Deglitch Circuit
    4. 7.4 Device Functional Modes
      1. 7.4.1 Fast-Settling Mode and THD
      2. 7.4.2 DAC Update Rate Mode
    5. 7.5 Programming
      1. 7.5.1 Daisy-Chain Operation
      2. 7.5.2 CLR Pin Functionality and Software Clear
      3. 7.5.3 Output Update (Synchronous and Asynchronous)
        1. 7.5.3.1 Synchronous Update
        2. 7.5.3.2 Asynchronous Update
      4. 7.5.4 Software Reset Mode
    6. 7.6 Register Map
      1. 7.6.1 NOP Register (address = 00h) [reset = 0x000000h for bits [23:0]]
      2. 7.6.2 DAC-DATA Register (address = 01h) [reset = 0x000000h for bits [23:0]]
      3. 7.6.3 CONFIG1 Register (address = 02h) [reset = 004C80h for bits [23:0]]
      4. 7.6.4 DAC-CLEAR-DATA Register (address = 03h) [reset = 000000h for bits [23:0]]
      5. 7.6.5 TRIGGER Register (address = 04h) [reset = 000000h for bits [23:0]]
      6. 7.6.6 STATUS Register (address = 05h) [reset = 000000h for bits [23:0]]
      7. 7.6.7 CONFIG2 Register (address = 06h) [reset = 000040h for bits [23:0]]
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Source Measure Unit (SMU)
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 High-Precision Control Loop
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
      3. 8.2.3 Arbitrary Waveform Generation (AWG)
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Detailed Design Procedure
        3. 8.2.3.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1 Interfacing to a Processor
      2. 8.3.2 Interfacing to a Low-Jitter LDAC Source
      3. 8.3.3 Embedded Resistor Configurations
        1. 8.3.3.1 Minimizing Bias Current Mismatch
        2. 8.3.3.2 2x Gain Configuration
        3. 8.3.3.3 Generating Negative Reference
    4. 8.4 What to Do and What Not to Do
      1. 8.4.1 What to Do
      2. 8.4.2 What Not to Do
    5. 8.5 Initialization Set Up
  9. 9 Power Supply Recommendations
    1. 9.1 Power-Supply Sequencing
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PCB Assembly Effects on Precision
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 サポート・リソース
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

7.6.3 CONFIG1 Register (address = 02h) [reset = 004C80h for bits [23:0]]

Figure 7-8 CONFIG1 Register Format
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Read/Write Address EN_
TMP_
CAL		 RESERVED TNH_MASK RESERVED
W W R/W-0h W-0h R/W-0h W-0h
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RSVD LDAC
MODE		 FSDO ENALMP DSDO FSET VREFVAL RSVD PDN RESERVED
W-0h R/W-1h R/W-0h R/W-0h R/W-1h R/W-1h R/W-2h W-0h R/W-0h W-0h
Table 7-7 CONFIG1 Register Field Descriptions
BitFieldTypeResetDescription
31Read/WriteWN/ARead when set to 1 or write when set to 0
30-24AddressWN/A02h
23EN_TMP_CALR/W0hEnables and disables the temperature calibration feature
0: Temperature calibration feature disabled (default)
1: Temperature calibration feature enabled
22-20RESERVEDW0hThese bits are reserved.
19-18TNH_MASKR/W0hMask track and hold (TNH) circuit. This bit is writable only when FSET = 0 [fast-settling mode] and DIS_TNH = 0 [track-and-hold enabled]
00: TNH masked for code jump > 214 (default)
01: TNH masked for code jump > 215
10: TNH masked for code jump > 213
11: TNH masked for code jump > 212
17-15RESERVEDW0hThese bits are reserved.
14LDACMODER/W1hSynchronous or asynchronous mode select bit
0: DAC output updated on SYNC rising edge
1: DAC updated on LDAC falling edge (default)
13FSDOR/W0hEnable Fast SDO
0: Fast SDO disabled (Default)
1: Fast SDO enabled
12ENALMPR/W0hEnable ALARM pin to be pulled low, end of temperature calibration cycle
0: No alarm on the ALARM pin
1: Indicates end of temperature calibration cycle. ALARM pin pulled low.
11DSDOR/W1hEnable SDO (for readback and daisy-chain)
1: SDO enabled (default)
0: SDO disabled
10FSETR/W1hFast-settling vs enhanced THD mode
0: Fast settling
1: Enhanced THD (default)
9-6VREFVALR/W2hReference span value bits
0000: Invalid
0001: Invalid
0010: Reference span = 5 V ± 1.25 V (default)
0011: Reference span = 7.5 V ± 1.25 V
0100: Reference span = 10 V ± 1.25 V
0101: Reference span = 12.5 V ± 1.25 V
0110: Reference span = 15 V ± 1.25 V
0111: Reference span = 17.5 V ± 1.25 V
1000: Reference span = 20 V ± 1.25 V
1001: Reference span = 22.5 V ± 1.25 V
1010: Reference span = 25 V ± 1.25 V
1011: Reference span = 27.5 V± 1.25 V
1100: Reference span = 30 V ± 1.25 V
5RESERVEDW0hThis bit is reserved.
4PDNR/W0hPowers down and power up the DAC
0: DAC power up (default)
1: DAC power down
3-0RESERVEDW0hThese bits are reserved.