AD7606BSTZ-6RL Analog Devices Inc, AD7606BSTZ-6RL Datasheet - Page 30

• Manufacturer Part Number: AD7606BSTZ-6RL
• Description: Simulat Sampliing Bipolar 16 Bit I.C.
• Manufacturer: Analog Devices Inc
• Type: Data Acquisition System (DAS), ADCr

Specifications of AD7606BSTZ-6RL

• Design Resources: Layout Considerations for an Expandable Multichannel Simultaneous Sampling Data Acquisition System Based on AD7606 (CN0148)
• Resolution (bits): 16 b
• Sampling Rate (per Second): 200k
• Data Interface: DSP, MICROWIRE™, Parallel, QSPI™, Serial, SPI™
• Voltage Supply Source: Single Supply
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LFQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AD7606BSTZ-6RL

AD7606/AD7606-6/AD7606-4
Figure 49 to Figure 55 illustrate the effect of oversampling on
the code spread in a dc histogram plot. As the oversample rate
is increased, the spread of the codes is reduced.
1000
1400
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1000
1400
1200
1000
900
800
700
600
500
400
300
200
100
800
600
400
200
800
600
400
200
Figure 50. Histogram of Codes—OS × 2 (Four Codes)
Figure 51. Histogram of Codes—OS × 4 (Four Codes)
Figure 49. Histogram of Codes—No OS (Six Codes)
0
0
0
NO OVERSAMPLING
F
AV
V
OVERSAMPLING BY 2
F
AV
V
OVERSAMPLING BY 4
F
AV
V
SAMPLE
SAMPLE
DRIVE
SAMPLE
DRIVE
DRIVE
–3
–3
–3
CC
CC
CC
0
0
0
= 5V
= 5V
= 5V
= 2.5V
= 2.5V
= 2.5V
= 200kSPS
= 100kSPS
= 50kSPS
–2
–2
–2
3
0
0
131
–1
80
–1
19
–1
CODE (LSB)
CODE (LSB)
CODE (LSB)
1148
1262
928
0
0
0
887
804
764
1
1
1
97
16
2
2
3
2
2
3
0
3
0
3
Rev. A | Page 30 of 36
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200
800
600
400
200
800
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400
200
Figure 52. Histogram of Codes—OS × 8 (Three Codes)
Figure 53. Histogram of Codes—OS × 16 (Two Codes)
Figure 54. Histogram of Codes—OS × 32 (Two Codes)
Figure 55. Histogram of Codes—OS × 64 (Two Codes)
0
0
0
0
OVERSAMPLING BY 8
F
AV
V
OVERSAMPLING BY 16
F
AV
V
OVERSAMPLING BY 32
F
AV
V
OVERSAMPLING BY 64
F
AV
V
SAMPLE
SAMPLE
SAMPLE
SAMPLE
DRIVE
DRIVE
DRIVE
DRIVE
–3
–3
–3
–3
CC
CC
CC
CC
0
0
0
0
= 5V
= 5V
= 5V
= 5V
= 2.5V
= 2.5V
= 2.5V
= 2.5V
= 25kSPS
= 12.5kSPS
= 6.125kSPS
= 3kSPS
–2
–2
–2
–2
0
0
0
0
–1
–1
–1
–1
2
0
0
0
CODE (LSB)
CODE (LSB)
CODE (LSB)
CODE (LSB)
1263
1453
1417
1679
0
0
0
0
783
595
631
369
1
1
1
1
0
2
0
2
0
2
0
2
0
3
0
3
0
3
0
3