MAX1358B Maxim Integrated Products, MAX1358B Datasheet - Page 26

• Manufacturer Part Number: MAX1358B
• Description: Data-Acquisition System
• Manufacturer: Maxim Integrated Products

DataSheet.in
The MAX1358B DAS features a multiplexed differential
16-bit ADC, 10-bit force-sense DACs, an RTC with an
alarm, a selectable bandgap voltage reference, a signal-
detect comparator, 1.8V and 2.7V voltage monitors, and
wake-up control circuitry, all controlled by a 4-wire serial
interface (see Figure 3 for the functional diagram).
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
Figure 3. Functional Diagram
26
______________________________________________________________________________________
DOUT
SCLK
SCM1
SCM2
AIN2
SNO1
SNO2
SNC1
SNC2
AIN1
DIN
CS
SPDT1
SPDT2
INTERFACE
CURRENT
SOURCE
DGND
SERIAL
PROG
DV
DD
Detailed Description
TEMP+
TEMP-
SCM1
SCM2
AGND
AGND
SNO1
SNO2
OUTA
OUTB
SNC2
SNC1
OUT1
AIN2
AIN1
FBA
FBB
IN1-
REF
REF
32KIN
AIN1
AIN2
SENSOR
OSCILLATOR
TEMP
32.768kHz
CONTROL
LOGIC
MUX
MUX
NEG
10:1
POS
10:1
32KOUT
POLARITY
FLIPPER
TEMP+
TEMP-
32K
INPUT/OUTPUT
CONTROL
PROG. V
CLK32K
CLK32K
RTC AND
ALARM
A
V
IN1+
= 1, 2, 4, 8 V/V
PGA
OS
CMP
M32K
IN1-
M32K
MAX1358B
16-BIT ADC
IN+
IN-
OP1
4.9152MHz HF
OSCILLATOR
WATCHDOG
The DAS directly interfaces to various sensor outputs
and, once configured, provides the stimulus, signal con-
ditioning, and data conversion, as well as µP support.
See the Applications section for sample MAX1358B
applications.
The 16-bit ADC features programmable continuous con-
version rates as shown in Table 4, and gains of 1, 2, 4,
and 8 (Table 5) to suit applications with different power
REF
AND FLL
TIMER
PWM
CLK
OUT1
WDTO
HFCLK
HFCLK
CRDY
ALD
SDC
ADD
ADOU
1.25V BANDGAP
10-BIT DAC
10-BIT DAC
CPOUT (2.7V)
LINEAR 1.65V
REGULATOR
INTERRUPT
REF
REF
MONITOR
VOLTAGE
VOLTAGE
STATUS
LCPD
DV
INT
UPR<4:1>
UPF<4:1>
DD
16
LDVD
M32K
BUF
BUF
A
4
4
V
= 1, 1.6384, 2 V/V
DV
DOUBLER
CHARGE-
MONITOR
VOLTAGE
AGND
PUMP
AV
UPIO
DD
PGA
DD
(1.8V)
CPOUT
CF-
CF+
REF
REG
SWB
SWA
FBA
OUTB
OUTA
UPIO1
UPIO2
UPIO3
UPIO4
RESET
FBB