MAX1361_06 Datasheet, PDF (9/24 Pages) Maxim Integrated Products – 4-Channel, 10-Bit, System Monitors with Programmable Trip Window and SMBus Alert Response

4-Channel, 10-Bit, System Monitor with Programmable
Trip Window and SMBus Alert Response
SDA
tSU.DAT
tLOW
tHD.DAT
tSU.STA
SCL
tR
tF
tHD.STA
tBUF
tSU.STO
9
tSU.STA
S
tHIGH
tR
tF
Figure 1a. F/S-Mode 2-Wire Serial-Interface Timing
Sr
ACK
P
S
tRDA
tFDA
SDA
tSU.DAT
tLOW
1
tHD.DAT
tSU.STA
SCL
tHD.STA
tSU.STO
9
tHD.STA
Sr
tHIGH
tRCL
tFCL
tRCL1
Sr
ACK
P
S
Figure 1b. HS-Mode 2-Wire Serial-Interface Timing
HS-MODE
Detailed Description
The MAX1361/MAX1362 4-channel ADCs use succes-
sive-approximation conversion techniques and fully dif-
ferential input track/hold (T/H) circuitry to capture and
convert analog signals to a serial 10-bit digital output.
The MAX1361/MAX1362 feature a monitor mode with
programmable trip thresholds and window comparator.
The monitor function asserts an interrupt when any
channel violates the programmed upper or lower
thresholds. SMBus alert response allows the host
microcontroller (µC) to quickly identify which device
caused the interrupt. A programmable delay between
monitoring intervals lowers power consumption at lower
monitor rates.
The MAX1361/MAX1362 integrate an internal voltage
reference and clock. The software configures the ana-
log inputs for unipolar/bipolar and single-ended/fully
differential operation. Integrated first-in/first-out (FIFO)
allows conversion of all channels, or eight conversions
F/S-MODE
V_DD
I_OL
SDA
V_OUT
400pF
I_OH
Figure 2. Load Circuits
on a selected channel to reduce interface overhead. An
I²C-compatible serial interface complies with standard,
fast, and high-speed (1.7MHz) modes.
_______________________________________________________________________________________ 9