MAX1036 Maxim, MAX1036 Datasheet - Page 10

• Manufacturer Part Number: MAX1036
• Description: 2.7V to 5.5V / Low-Power / 4-/12-Channel 2-Wire Serial 8-Bit ADCs
• Manufacturer: Maxim

The MAX1036–MAX1039 feature input tracking circuitry
with a 2MHz small signal-bandwidth. The 2MHz input
bandwidth makes it possible to digitize high-speed
transient events and measure periodic signals with
bandwidths exceeding the ADC’s sampling rate by
using undersampling techniques. To avoid high fre-
quency signals being aliased into the frequency band
of interest, anti-alias filtering is recommended.
2.7V to 5.5V, Low-Power, 4-/12-Channel
2-Wire Serial 8-Bit ADCs
Figure 3. MAX1038/MAX1039 Simplified Functional Diagram
Figure 4. Equivalent Input Circuit
10
______________________________________________________________________________________
AIN3/REF
AIN0
AIN1
AIN2
GND
Analog Input Bandwidth
AIN11/REF
AIN10
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
GND
SDA
SCL
V
DD
ANALOG INPUT MUX
CONFIGURATION REGISTER
ANALOG
INPUT
MUX
INPUT SHIFT REGISTER
SETUP REGISTER
REF
4.096V (MAX1038)
2.048V (MAX1039)
T/H
REFERENCE
8-BIT
ADC
CONTROL
LOGIC
Internal protection diodes clamp the analog input to
V
swing from (GND - 0.3V) to (V
ing damage to the device. For accurate conversions,
the inputs must not go more than 50mV below GND or
above V
than 50mV, the input current should be limited to 2mA.
C
T/H
DD
and GND. These diodes allow the analog inputs to
DD
MAX1038
MAX1039
OSCILLATOR
Analog Input Range and Protection
INTERNAL
. If the analog input exceeds V
OUTPUT SHIFT
REGISTER AND
12-BYTE RAM
REF
CAPACITIVE
DAC
MAX1036
MAX1037
DD
+ 0.3V) without caus-
DD
by more