参数资料
型号: ADE7116ASTZF8
厂商: Analog Devices Inc
文件页数: 53/152页
文件大小: 0K
描述: IC ENERGY METER 64-LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 160
输入阻抗: 770 千欧
测量误差: 0.1%
电压 - 高输入/输出: 2V
电压 - 低输入/输出: 0.8V
电流 - 电源: 4mA
电源电压: 2.4 V ~ 3.7 V
测量仪表类型: 单相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Voltage Channel ADC
Figure 48 shows the ADC and signal processing chain for the
voltage channel. In waveform sampling mode, the ADC outputs
a signed, twos complement, 24-bit data-word at a maximum
of 25.6 kSPS (MCLK/160). The ADC produces an output code
that is approximately between 0x28F5 (+10,485d) and 0xD70B
(?10,485d).
Channel Sampling
The waveform samples of the current ADC and voltage ADC
can also be routed to the waveform registers to be read by the
MCU core. The active, reactive, and apparent power and energy
calculation remain uninterrupted during waveform sampling.
When in waveform sampling mode, one of four output sample
rates can be chosen by using the DTRT[1:0] bits of the
WAVMODE register (see Table 35). The output sample rate can
be 25.6 kSPS, 12.8 kSPS, 6.4 kSPS, or 3.2 kSPS. If the WFSM
enable bit is set in the Interrupt Enable 3 SFR (MIRQENH,
Address 0xDB), the 8052 core has a pending ADE interrupt.
The sampled signals selected in the WAVMODE register are
latched into the waveform SFRs when the waveform high byte
(WAV1H or WAV2H) is read.
The ADE interrupt stays active until the WFSM status bit is
cleared (see the Energy Measurement Interrupts section).
HPF
V2
V P
V N
×1, ×2, ×4,
×8, ×16
{GAIN[7:5]}
PGA2
REFERENCE
ADC
ACTIVE AND REACTIVE
POWER CALCULATION
VOLTAGE RMS (V rms )
CALCULATION
WAVEFORM SAMPLE
REGISTER
VOLTAGE PEAK DETECT
V2
0.5V, 0.25V,
0.125V, 62.5mV,
31.3mV
0V
ANALOG
INPUT
RANGE
0x28F5
VOLTAGE CHANNEL
WAVEFORM
DATA RANGE
LPF1
f –3dB = 63.7Hz
MODE 1[6]
ZX DETECTION
ZX SIGNAL
DATA RANGE FOR 60Hz SIGNAL
0x1DD0
0x0000
0x0000
0xE230
0xD70B
ZX SIGNAL
DATA RANGE FOR 50Hz SIGNAL
0x2037
0x0000
0xDFC9
Figure 48. ADC and Signal Processing in Voltage Channel
Rev. B | Page 53 of 1 5 2
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