MAX1402EVKIT Maxim Integrated Products, MAX1402EVKIT Datasheet - Page 37

• Manufacturer Part Number: MAX1402EVKIT
• Description: EVAL KIT FOR MAX1402
• Manufacturer: Maxim Integrated Products

Specifications of MAX1402EVKIT

• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 480
• Data Interface: Serial
• Inputs Per Adc: 6 Single Ended
• Input Range: ±VREF/2
• Power (typ) @ Conditions: 26.7mW @ 480SPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: 0°C ~ 70°C
• Utilized Ic / Part: MAX1402
• Interface Type: SMA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MAX1402

board is dedicated to ground planes while signals are
placed on the solder side.
Good decoupling is important when using high-resolu-
tion ADCs. Decouple all analog supplies with 10µF tan-
talum capacitors in parallel with 0.1µF HF ceramic
capacitors to AGND. Place these components as close
to the device as possible to achieve the best decou-
pling.
See the MAX1402 evaluation kit manual for the recom-
mended layout. The evaluation board package includes
a fully assembled and tested evaluation board.
For applications that require an optically isolated
interface, refer to Figure 21. With 6N136-type optocou-
plers, maximum clock speed is 4MHz. Maximum clock
speed is limited by the degree of mismatch between
the individual optocouplers. Faster optocouplers allow
faster signaling at a higher cost.
Figure 20. 4-Wire RTD Application
RTD
R
REF
______________________________________________________________________________________
OUT2
REFIN+
OUT1
REFIN-
AIN1
AIN2
AGND
+5V, 18-Bit, Low-Power, Multichannel,
+5V
V+
200µA
200µA
PGA
DGND
Optical Isolation
A = 1 TO 128
V
Oversampling (Sigma-Delta) ADC
DD
MODULATOR
MAX1402
TRANSISTOR COUNT: 34,648
SUBSTRATE CONNECTED TO AGND
Pages changed at Rev2: 1, 37, 38
Figure 21. Optically Isolated Interface
+V
DD
MOSI
MISO
SCK
INT
470Ω
470Ω
2k
2k
V
V
CC
CC
V
V
CC
CC
6N136
6N136
6N136
6N136
Chip Information
Revision History
470Ω
470Ω
2k
2k
DIN
SCLK
DOUT
INT
MAX1402
+5V
ISO
37