MAX1034BEUG+ Maxim Integrated, MAX1034BEUG+ Datasheet - Page 13

• Manufacturer Part Number: MAX1034BEUG+
• Description: Analog to Digital Converters - ADC 8-/4-Channel, Multirange Inputs,
• Manufacturer: Maxim Integrated

Specifications of MAX1034BEUG+

• Rohs: yes
• Number Of Channels: 8/4
• Architecture: SAR
• Conversion Rate: 115 kSPs
• Resolution: 14 bit
• Input Type: Single-Ended/Differential
• Snr: 84.5 dB
• Interface Type: 3-Wire, QSPI, SPI
• Operating Supply Voltage: 2.7 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-24
• Maximum Power Dissipation: 1111.1 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: 4.136 V

Figure 1. Typical Application Circuit
The MAX1034/MAX1035 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
MAX1034 MAX1035
21
22
23
24
PIN
18
19
20
1
______________________________________________________________________________________
8-/4-Channel, ±V
Detailed Description
AGND3
AGND2
AGND1
AVDD2
NAME
1µF
ACCELERATION
WHEATESTONE
WHEATESTONE
TEMPERATURE
PRESSURE
4–20mA
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.
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 .
PLC
0.1µF
0.1µF
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
REF
AGND1
REFCAP
AVDD2
AGND2
5.0V
0.1µF
AGND3
MAX1034
AVDD1
5.0V
DGND
single-ended conversions, the valid analog input voltage
range spans from -V
ground. The maximum allowable differential input volt-
age spans from -2 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.
REF
DGNDO
DVDD
DVDDO
5.0V
SSTRB
DOUT
SCLK
DIN
CS
FUNCTION
0.1µF
Serial 14-Bit ADCs
Multirange Inputs,
Pin Description (continued)
3.3V
0.1µF
V
SCK
I/O
MOSI
I/O
MISO
DD
MC68HCXX
REF
V
µC
SS
REF
below ground to +V
to +2 x V
REF
. Data can be
REF
above
13