| 数据搜索系统,热门电子元器件搜索 |
|
ADE7166 数据表(PDF) 43 Page - Analog Devices |
|
|
|||||||||||||||||||||||||||||
ADE7166 数据表(HTML) 43 Page - Analog Devices |
|
43 / 148 page ![]() Preliminary Technical Data ADE75xx/ADE71xx Rev. PrE | Page 43 of 148 0 AEHF When this bit is set, the AEHF flag set creates a pending ADE interrupt to the 8052 core. Table 41. Interrupt Enable Register 3 SFR (MIRQENH, 0xDB) Bit Location Interrupt Flag Description 7-6 - Reserved 5 WFSM When this bit is set, the WFSM flag set creates a pending ADE interrupt to the 8052 core. 4 PKI When this bit is set, the PKI flag set creates a pending ADE interrupt to the 8052 core. 3 PKV When this bit is set, the PKV flag set creates a pending ADE interrupt to the 8052 core.. 2 CYCEND When this bit is set, the CYCEND flag set creates a pending ADE interrupt to the 8052 core. 1 ZXTO When this bit is set, the ZXTO flag set creates a pending ADE interrupt to the 8052 core. 0 ZX When this bit is set, the ZX flag set creates a pending ADE interrupt to the 8052 core. ANALOG INPUTS The ADE75XX/ADE71XX has two fully differential voltage input channels. The maximum differential input voltage for input pairs VP/VN and IP/IN are ±0.5 V. In addition, the maximum signal level on analog inputs for VP/VN and IP/ IN is ±0.5 V with respect to AGND. Each analog input channel has a PGA (programmable gain amplifier) with possible gain selections of 1, 2, 4, 8, and 16. The gain selections are made by writing to the GAIN register in the Energy Measurement Register List—see Table 34 and RESERVED GAIN REGISTER* CURRENT AND VOLTAGE CHANNELS PGA CONTROL 7 0 ADDR: 1BH * REGISTER CONTENTS SHOW POWER-ON DEFAULTS PGA 2 GAIN SELECT 000 = x 1 001 = x 2 010 = x 4 011 = x 8 100 = x 16 PGA 1 GAIN SELECT 000 = x 1 001 = x 2 010 = x 4 011 = x 8 100 = x 16 6 0 5 0 4 0 3 0 2 0 1 0 0 0 Figure 17. Bits 0 to 2 select the gain for the PGA in the current channel, and the gain selection for the PGA in voltage channel is made via Bits 5 to 7. Figure 16 shows how a gain selection for the current channel is made using the gain register. V1P V1N VIN K ⋅ V IN GAIN[7:0] 76 5 4 3 2 1 0 00 0 0 0 0 0 0 GAIN (K) SELECTION Figure 16. PGA in current channel In addition to the PGA, Channel 1 also has a full-scale input range selection for the ADC. The ADC analog input range selection is also made using the gain register—see RESERVED GAIN REGISTER* CURRENT AND VOLTAGE CHANNELS PGA CONTROL 7 0 ADDR: 1BH * REGISTER CONTENTS SHOW POWER-ON DEFAULTS PGA 2 GAIN SELECT 000 = x 1 001 = x 2 010 = x 4 011 = x 8 100 = x 16 PGA 1 GAIN SELECT 000 = x 1 001 = x 2 010 = x 4 011 = x 8 100 = x 16 6 0 5 0 4 0 3 0 2 0 1 0 0 0 Figure 17. As mentioned previously, the maximum differential input voltage is 0.5 V. |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |