MAX1301BEUP+CAL Maxim Integrated, MAX1301BEUP+CAL Datasheet - Page 13

• Manufacturer Part Number: MAX1301BEUP+CAL
• Description: Analog to Digital Converters - ADC Intel R2 Customer special for MAX1301BEUP+
• Manufacturer: Maxim Integrated

Specifications of MAX1301BEUP+CAL

• Number Of Channels: 4/2
• Architecture: SAR
• Conversion Rate: 130 KSPs
• Input Type: Single-Ended/Differential
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 879 mW
• Number Of Converters: 1

Figure 1. Typical Application Circuit
The MAX1300/MAX1301 multirange, low-power, 16-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 16-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
(µP) control is made easy through an SPI-/QSPI-/
MICROWIRE-compatible serial interface.
MAX1300 MAX1301
8- and 4-Channel, ±3 x V
21
22
23
24
PIN
18
19
20
1
______________________________________________________________________________________
AGND3
AGND2
AGND1
AVDD2
NAME
Detailed Description
REF
REF
below ground to +3 x V
to +6 x V
1µF
Analog Signal Ground 3. AGND3 is the ADC negative reference potential. Connect AGND3 to
AGND1. DGND, DGNDO, AGND3, AGND2, and AGND1 must be connected together.
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.
Analog Ground 1. DGND, DGNDO, AGND3, AGND2, and AGND1 must be connected together.
ACCELERATION
TEMPERATURE
WHEATESTONE
WHEATESTONE
PRESSURE
4–20mA
PLC
0.1µF
REF
. Data can be
0.1µF
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
REF
AGND1
REFCAP
AVDD2
AGND2
5.0V
0.1µF
REF
AGND3
MAX1300
AVDD1
5.0V
DGND
The MAX1300 has eight single-ended analog input
channels or four differential channels (see the Block
Diagram at the end of the data sheet). The MAX1301
has four single-ended analog input channels or two dif-
ferential channels. Each analog input channel is inde-
pendently software programmable for seven
single-ended input ranges [0 to (+3 x V
(-3 x V
(±3 x V
ferential input ranges [(±3 x V
±6 x V
fault tolerant to ±16.5V. A fault condition on an idle
channel does not affect the conversion result of other
channels.
REF
DGNDO
DVDD
DVDDO
5.0V
SSTRB
DOUT
SCLK
DIN
CS
REF
REF
REF
FUNCTION
0.1µF
]. Additionally, all analog input channels are
Serial 16-Bit ADCs
)/4, (±3 x V
Multirange Inputs,
)/2 to 0, 0 to +3 x V
Pin Description (continued)
3.3V
0.1µF
V
SCK
I/O
MOSI
I/O
MISO
DD
MC68HCXX
V
µC
SS
REF
)/2, ±3 x V
REF
REF
REF
, -3 x V
)/2, ±3 x V
] and three dif-
REF
REF
to 0,
REF
)/2,
13
,