MAX1245BCAP Maxim Integrated, MAX1245BCAP Datasheet - Page 18

• Manufacturer Part Number: MAX1245BCAP
• Description: Analog to Digital Converters - ADC Integrated Circuits (ICs)
• Manufacturer: Maxim Integrated

Specifications of MAX1245BCAP

• Number Of Channels: 8/4
• Architecture: SAR
• Conversion Rate: 100 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended/Differential
• Snr: 70 dB
• Interface Type: 4-Wire (SPI, Microwire, QSPI, TMS320)
• Operating Supply Voltage: 2.375 V to 3.3 V
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-20
• Maximum Power Dissipation: 640 mW
• Minimum Operating Temperature: 0 C
• Number Of Converters: 1
• Factory Pack Quantity: 66
• Voltage Reference: 2.048 V

+2.375V, Low-Power, 8-Channel,
Serial 12-Bit ADC
Figure 17. MAX1245 QSPI Connections
The MAX1245 can interface with QSPI using the circuit in
Figure 17 (f
QSPI circuit can be programmed to do a conversion on
each of the eight channels. The result is stored in memory
without taxing the CPU, since QSPI incorporates its own
micro-sequencer.
Because the maximum external clock frequency is
1.5MHz, the MAX1245 is QSPI compatible up to 1.5MHz.
18
High-Speed Digital Interfacing with QSPI
______________________________________________________________________________________
ANALOG
INPUTS
SCLK
= 1.5MHz, CPOL = 0, CPHA = 0). This
10
1
2
3
4
5
6
7
8
9
SHDN
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
MAX1245
SSTRB
DGND
AGND
DOUT
SCLK
VREF
V
V
DIN
CS
DD
DD
14
20
19
18
17
16
15
13
12
11
0.1 µ F
0.1 µ F
+2.048V
4.7 µ F
+2.5V
+3V
(POWER SUPPLIES)
SCK
PCS0
MOSI
MISO
CLOCK CONNECTIONS NOT SHOWN
MC683XX
(GND)