AD73360ASU Analog Devices Inc, AD73360ASU Datasheet - Page 2

• Manufacturer Part Number: AD73360ASU
• Description: IC ANALOG FRONT END 6CH 44-TQFP
• Manufacturer: Analog Devices Inc

Specifications of AD73360ASU

• Number Of Channels: 6
• Rohs Status: RoHS non-compliant
• Number Of Bits: 16
• Power (watts): 80mW
• Voltage - Supply, Analog: 3V
• Voltage - Supply, Digital: 3V
• Package / Case: 44-TQFP, 44-VQFP
• Analog Front End Type: General Purpose
• Analog Front End Category: General Purpose
• Interface Type: Serial (6-Wire)
• Sample Rate: 64KSPS
• Input Voltage Range: 1.64375V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Resolution: 16b
• Number Of Adc's: 6
• Power Supply Type: Analog/Digital
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: TQFP
• For Use With: EVAL-AD73360LEB - BOARD EVAL FOR AD73360L
• Lead Free Status / RoHS Status: Not Compliant

ERRATA DOCUMENT
Choosing SCLK rate and Sample Period
For a cascade of a given length, the SCLK rate and Sample Period will determine if the cascade can be used
successfully. A low sample rate will allow more time for the ADC data to be read. Similarly a high SCLK rate
will transmit the data in a shorter time. Since both the SCLK rate and Sample Rate are derived from the same
DMCLK the number of combinations is limited. As most applications will require a predetermined sample rate,
the SCLK speed will be the limitating factor in the cascade length that can be used. Table I shows the maximum
cascade length for a given SCLK and Sample Rate. The table assumes that a MCLK of 16.384MHz is used.
S D O F S
S C L K
S D O
1
D e vi ce 3 - C h an ne l 1
4
8
12
SCLK (MHz)
16.384
8.192
4.096
2.048
Table I. Maximum Cascade Length with Various
16
Figure 2. Cascade Timing for a Three-Device Cascade
D e vice 2 - C h an ne l 1
SCLK and Sample Rates
64 S C LK s
Max. Number
of Devices
2
3
4
5
1
2
3
4
1
2
3
1
2
D e vice 1 - C h an ne l 1
D e vice 1 - C h an ne l 1
–2–
Sample Rate
(KHz)
64
32
16
8
64
32
16
8
32
16
8
16
8
D e vi ce 3 - C h an ne l 2
D e vice 2 - C h an ne l 2
AD73360 Rev.1
REV.A