MAX1033BEUP/GG8 Maxim Integrated, MAX1033BEUP/GG8 Datasheet - Page 13

• Manufacturer Part Number: MAX1033BEUP/GG8
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1033BEUP/GG8

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 115 KSPs
• Resolution: 14 bit
• Input Type: Single-Ended/Differential
• Snr: 85 dB
• Interface Type: SPI
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 879 mW
• Number Of Converters: 1
• Voltage Reference: 4.096 V

The MAX1032/MAX1033 multirange, low-power, 14-bit
successive-approximation ADCs operate from a single
+5V supply and have a separate digital supply allowing
digital interface with 2.7V to 5.25V systems. These 14-bit
ADCs have internal track-and-hold (T/H) circuitry that
supports single-ended and fully differential inputs. For
single-ended conversions, the valid analog input voltage
range spans from -3 x V
above ground. The maximum allowable differential input
voltage spans from -6 x V
converted in a variety of software-programmable chan-
nel and data-acquisition configurations. Microprocessor
Figure 1. Typical Application Circuit
MAX1032 MAX1033
22
23
24
PIN
19
20
1
______________________________________________________________________________________
Detailed Description
AGND2
AGND1
AVDD2
REF
NAME
REF
Multirange Inputs, Serial 14-Bit ADCs
1µF
below ground to +3 x V
to +6 x V
ACCELERATION
WHEATESTONE
WHEATESTONE
TEMPERATURE
PRESSURE
4–20mA
PLC
Analog Supply Voltage 2. Connect AVDD2 to a 4.75V to 5.25V power-supply voltage. Bypass
AVDD2 to AGND2 with a 0.1µF capacitor.
Analog Ground 2. This ground carries approximately five times more current than AGND1.
DGND, DGNDO, AGND3, AGND2, and AGND1 must be connected together.
Anal og Gr ound 1. D GN D , D GN DO, AGN D 3, AGN D 2, and AGND 1 must b e connected together .
0.1µF
REF
0.1µF
. Data can be
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
REF
AGND1
REFCAP
AGND2
AVDD2
5.0V
0.1µF
AGND3
8- and 4-Channel, ±3 x V
MAX1032
AVDD1
REF
5.0V
DGND
DGNDO
DVDD
DVDD0
5.0V
SSTRB
(µP) control is made easy through an SPI-/QSPI-/
MICROWIRE-compatible serial interface.
The MAX1032 has eight single-ended analog input
channels or four differential channels (see the Block
Diagram at the end of the data sheet). The MAX1033 has
four single-ended analog input channels or two differential
channels. Each analog input channel is independently soft-
ware programmable for seven single-ended input ranges
(0 to (3 x V
V
three differential input ranges (±3 x V
x V
erant to ±16.5V. A fault condition on an idle channel does
not affect the conversion result of other channels.
DOUT
SCLK
REF
DIN
CS
REF
0.1µF
to 0, (±3 x V
. Additionally, all analog input channels are fault tol-
FUNCTION
3.3V
0.1µF
REF
Pin Description (continued)
V
SCK
I/O
MOSI
I/O
MISO
DD
MC68HCXX
)/2, (-3 x V
V
µC
SS
REF
)/4, (±3 x V
REF
)/2 to 0, 0 to 3 x V
REF
REF
)/2
)/2, ±3 x V
,
±3 x V
REF
REF
REF
REF,
, -3 x
) and
±6
13