MAX1304_11 Datasheet, PDF (31/37 Pages) Maxim Integrated Products – 8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V

8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
3-Phase Power-Monitoring System
The 8-channel devices are well suited for use in
3-phase power monitoring (Figure 16). The simultane-
ously sampled eight channels eliminate the need for
complicated DSP algorithms that realign sequentially
sampled data into a simultaneous sample set.
T/H
BUFFERS
AND INPUT
PROTECTION
V_P3
PHASE 1
V_P1 VNEUTRAL
V_P2
I_P3 I_P2 I_Pn I_P1
CURRENT
TRANSFORMER
POWER ^NEUTRAL
GRID
PHASE 2
PHASE 3
Figure 16. 3-Phase Power Monitoring
CURRENT
TRANSFORMER
CURRENT
TRANSFORMER
CURRENT
TRANSFORMER
MAX1312
12-BIT
ADC
MICROCONTROLLER
LOAD
LOAD
LOAD
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