MAX1248BEPE Maxim Integrated, MAX1248BEPE Datasheet - Page 11

• Manufacturer Part Number: MAX1248BEPE
• Description: Analog to Digital Converters - ADC Integrated Circuits (ICs)
• Manufacturer: Maxim Integrated

Specifications of MAX1248BEPE

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 133 KSPs
• Resolution: 10 bit
• Input Type: Single-Ended/Differential
• Snr: 66 dB
• Interface Type: 4-Wire (SPI, Microwire, QSPI, TMS320)
• Operating Supply Voltage: 2.7 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Package / Case: PDIP N
• Maximum Power Dissipation: 667 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Factory Pack Quantity: 25
• Voltage Reference: 2.5 V

CS goes high; after the next CS falling edge, SSTRB will
output a logic low. Figure 7 shows the SSTRB timing in
external clock mode.
The conversion must complete in some minimum time,
or droop on the sample-and-hold capacitors may
degrade conversion results. Use internal clock mode if
Figure 5. 24-Clock External Clock Mode Conversion Timing (MICROWIRE and SPI-Compatible, QSPI-Compatible with f
Figure 6. Detailed Serial-Interface Timing
SSTRB
A/D STATE
DOUT
SCLK
DIN
CS
DOUT
SCLK
DIN
CS
START
1
SEL2 SEL1 SEL0
t
CSH
______________________________________________________________________________________
+2.7V to +5.25V, Low-Power, 4-Channel,
IDLE
RB1
t
4
DV
t
CSS
UNI/
BIP
t
DS
t
DH
SGL/
ACQUISITION
(f
DIF
CLK
1.5µs
t
PD1 PD0
ACQ
= 2MHz)
8
t
Serial 10-Bit ADCs in QSOP-16
CL
MSB
t
B9
CH
B8
B7
12
the serial-clock frequency is less than 100kHz, or if
serial-clock interruptions could cause the conversion
interval to exceed 120µs.
RB2
B6
CONVERSION
B5
B4
B3
16
B2
t
DO
B1
LSB
B0
S1
t
CSH
20
RB3
S0
FILLED WITH
ZEROS
IDLE
t
TR
SCLK
24
≤ 2MHz)
11