JAJSGE8B
March 2016 – October 2018
ADS1282-SP
PRODUCTION DATA.
1
特長
2
アプリケーション
3
概要
Device Images
概略回路図
4
改訂履歴
5
概要(続き)
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
7.7
Pulse-Sync Timing Requirements
7.8
Reset Timing Requirements
7.9
Read Data Timing Requirements
7.10
Switching Characteristics
7.11
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Noise Performance
8.3.2
Input-Referred Noise
8.3.3
Idle Tones
8.3.4
Operating Mode
8.3.5
Analog Inputs and Multiplexer
8.3.6
PGA (Programmable Gain Amplifier)
8.3.7
ADC
8.3.8
Modulator
8.3.9
Modulator Over-Range
8.3.10
Modulator Input Impedance
8.3.11
Modulator Over-Range Detection (MFLAG)
8.3.12
Voltage Reference Inputs (VREFP, VREFN)
8.3.13
Digital Filter
8.3.13.1
Sinc Filter Stage (Sinx/X)
8.3.13.2
FIR Stage
8.3.13.3
Group Delay and Step Response
8.3.13.3.1
Linear Phase Response
8.3.13.3.2
Minimum Phase Response
8.3.13.4
HPF Stage
8.3.14
Master Clock Input (CLK)
8.3.15
Synchronization (SYNC Pin and Sync Command)
8.3.16
Pulse-Sync Mode
8.3.17
Continuous-Sync Mode
8.3.18
Reset (RESET Pin and Reset Command)
8.3.19
Power-Down (PWDN Pin and Standby Command)
8.3.20
Power-On Sequence
8.3.21
Serial Interface
8.3.21.1
Serial Clock (SCLK)
8.3.21.2
Data Input (DIN)
8.3.21.3
Data Output (DOUT)
8.3.21.4
Data Ready (DRDY)
8.3.22
Data Format
8.3.23
Reading Data
8.3.23.1
Read Data Continuous
8.3.23.2
Read Data by Command
8.3.24
One-Shot Operation
8.4
Device Functional Modes
8.4.1
Modulator Output Mode
8.5
Programming
8.5.1
Commands
8.5.1.1
WAKEUP: Wake-Up from Standby Mode
8.5.1.2
STANDBY: Standby Mode
8.5.1.3
SYNC: Synchronize the A/D Conversion
8.5.1.4
RESET: Reset the Device
8.5.1.5
RDATAC: Read Data Continuous
8.5.1.6
SDATAC: Stop Read Data Continuous
8.5.1.7
RDATA: Read Data By Command
8.5.1.8
RREG: Read Register Data
8.5.1.9
WREG: Write to Register
8.5.1.10
OFSCAL: Offset Calibration
8.5.1.11
GANCAL: Gain Calibration
8.5.2
Calibration Commands
8.5.2.1
OFSCAL Command
8.5.2.2
GANCAL Command
8.5.3
User Calibration
8.5.4
Configuration Guide
8.6
Register Maps
8.6.1
ADS1282-SP Register Map Information
8.6.2
ID Register
Table 13.
ID Register Field Descriptions
8.6.3
Configuration Registers
8.6.3.1
Configuration Register 0
Table 14.
Configuration Register 0 Field Descriptions
8.6.3.2
Configuration Register 1
Table 15.
Configuration Register 1 Field Descriptions
8.6.4
HPF1 and HPF0
8.6.4.1
High-Pass Filter Corner Frequency, Low Byte
8.6.4.2
High-Pass Filter Corner Frequency, High Byte
8.6.5
OFC2, OFC1, OFC0
8.6.5.1
Offset Calibration, Low Byte
8.6.5.2
Offset Calibration, Mid Byte
8.6.5.3
Offset Calibration, High Byte
8.6.6
FSC2, FSC1, FSC0
8.6.6.1
Full-Scale Calibration, Low Byte
8.6.6.2
Full-Scale Calibration, Mid Byte
8.6.6.3
Full-Scale Calibration, High Byte
8.6.7
Offset and Full-Scale Calibration Registers
8.6.7.1
OFC[2:0] Registers
8.6.7.2
FSC[2:0] Registers
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Thermocouple Temperature Sensing Application
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.2
Digital Connection to a Field Programmable Gate Array (FPGA) Device Typical Application
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
デバイスおよびドキュメントのサポート
12.1
デバイス・サポート
12.1.1
HPF伝達関数
12.2
ドキュメントの更新通知を受け取る方法
12.3
コミュニティ・リソース
12.4
商標
12.5
静電気放電に関する注意事項
12.6
Glossary
13
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
HKV|28
MCDF016
サーマルパッド・メカニカル・データ
発注情報
jajsge8b_oa
jajsge8b_pm
7.11
Typical Characteristics
At 25°C, AVDD = 2.5 V, AVSS = –2.5 V, ƒ
CLK
= 4.096 MHz, VREFP = 2.5 V, VREFN = –2.5 V, DVDD = 3.3 V, CAPN – CAPP = 10 nF, PGA = 1, and ƒ
DATA
= 1000 SPS, unless otherwise noted.
Figure 2.
Output Spectrum
Figure 4.
Output Spectrum
Figure 6.
Output Spectrum
Figure 8.
SNR (1000 SPS) vs Temperature
Figure 10.
SNR vs Reference Voltage
Figure 12.
SNR vs Clock Frequency
Figure 14.
CMR vs Input Frequency
Figure 16.
INL vs Input Amplitude
Figure 18.
Crosstalk Output Spectrum
Figure 20.
Power vs Clock Frequency
Figure 22.
Gain Error Histogram
Figure 24.
Gain Drift Histogram
Figure 3.
Output Spectrum
Figure 5.
Output Spectrum
Figure 7.
THD vs Input Frequency
Figure 9.
THD (G = 8) vs Temperature
Figure 11.
THD vs Reference Voltage
Figure 13.
THD vs Clock Frequency
Figure 15.
Power-Supply Rejection vs Frequency
Figure 17.
INL vs Temperature
Figure 19.
Power vs Temperature
Figure 21.
Offset Histogram
Figure 23.
Offset Drift Histogram
Figure 25.
Gain Match Histogram