AD9212ABCPZRL7-40 Analog Devices Inc, AD9212ABCPZRL7-40 Datasheet - Page 29

• Manufacturer Part Number: AD9212ABCPZRL7-40
• Description: Octal 10 Bit, 40 MSPS Serial LVDS ADC
• Manufacturer: Analog Devices Inc

Specifications of AD9212ABCPZRL7-40

• Number Of Bits: 10
• Sampling Rate (per Second): 40M
• Data Interface: Serial, SPI™
• Number Of Converters: 8
• Power Dissipation (max): 560mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

External Reference Operation
The use of an external reference may be necessary to enhance
the gain accuracy of the ADC or to improve thermal drift charac-
teristics. Figure 66 shows the typical drift characteristics of the
internal reference in 1 V mode.
When the SENSE pin is tied to AVDD, the internal reference is
disabled, allowing the use of an external reference. The external
reference is loaded with an equivalent 6 kΩ load. An internal
reference buffer generates the positive and negative full-scale
references, REFT and REFB, for the ADC core. Therefore, the
external reference must be limited to a nominal voltage of 1.0 V.
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–0.02
–0.04
–0.06
–0.08
–0.10
–0.12
–0.14
–0.16
–0.18
0.02
0
–40
–20
Figure 66. Typical VREF Drift
0
TEMPERATURE (°C)
20
40
60
AD9212
80