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

• Manufacturer Part Number: MAX1301BEUP+
• Description: IC ADC 16BIT SER 4CH LP 20TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1301BEUP+

• Number Of Bits: 16
• Sampling Rate (per Second): 115k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 105.5mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
AV
NAME
Detailed Description
REF
DD2
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 AV
AV
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
WHEATESTONE
WHEATESTONE
DD2
TEMPERATURE
PRESSURE
4–20mA
PLC
to AGND2 with a 0.1μF capacitor.
0.1μF
REF
. Data can be
0.1μF
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
REF
AGND1
REFCAP
AGND2
AV
5.0V
DD2
0.1μF
REF
AGND3
MAX1300
AV
5.0V
DD1
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
DV
5.0V
DV
SSTRB
DD2
DOUT
SCLK
DD
DDO
DIN
CS
REF
to a +4.75V to +5.25V power-supply voltage. Bypass
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)
0.1μF
3.3V
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
,