AD9222BCPZ-65 Analog Devices Inc, AD9222BCPZ-65 Datasheet - Page 32
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AD9222BCPZ-65
Manufacturer Part Number
AD9222BCPZ-65
Description
IC,A/D CONVERTER,OCTAL,12-BIT,LLCC,64PIN
Manufacturer
Analog Devices Inc
Datasheet
1.AD9222ABCPZRL7-50.pdf
(60 pages)
Specifications of AD9222BCPZ-65
Number Of Bits
12
Sampling Rate (per Second)
65M
Data Interface
Serial, SPI™
Number Of Converters
8
Power Dissipation (max)
950.5mW
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
For Use With
AD9222-65EBZ - BOARD EVALUATION AD9222 65MSPSAD9222-50EBZ - BOARD EVALUATION FOR AD9222
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD9222BCPZ-65
Manufacturer:
AD
Quantity:
1 001
Company:
Part Number:
AD9222BCPZ-65
Manufacturer:
ADI
Quantity:
329
AD9222
External Reference Operation
The use of an external reference may be necessary to enhance
the gain accuracy of the ADC or improve thermal drift charac-
teristics. Figure 82 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 of 1.0 V.
–10
–15
–20
–25
–30
–5
5
0
0
Figure 81. V
0.5
1.0
REF
Accuracy vs. Load, AD9222-50
CURRENT LOAD (mA)
1.5
2.0
2.5
3.0
3.5
Rev. D | Page 32 of 60
–0.02
–0.04
–0.06
–0.08
–0.10
–0.12
–0.14
–0.16
–0.18
0.02
0
–40
Figure 82. Typical V
–20
0
TEMPERATURE (°C)
REF
20
Drift, AD9222-50
40
60
80