EVAL-AD7643CBZ Analog Devices Inc, EVAL-AD7643CBZ Datasheet - Page 12

• Manufacturer Part Number: EVAL-AD7643CBZ
• Description: BOARD EVALUATION FOR AD7643
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7643CBZ

• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 1.25M
• Data Interface: Serial, Parallel
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 65mW @ 1.25MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7643
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD7643
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 7. Typical Reference Voltage Output vs. Temperature (2 Units)
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
40000
35000
30000
25000
20000
15000
10000
2.0486
2.0484
2.0482
2.0480
2.0478
2.0476
2.0474
2.0472
2.0470
3.0
2.5
2.0
1.5
1.0
0.5
5000
Figure 6. Histogram of 131,072 Conversions of a DC Input at
0
0
0
–55
0
1
–35
Figure 5. Integral Nonlinearity vs. Code
the Code Center (External Reference)
3
65536
59
–15
228
3062
4848
5
TEMPERATURE (°C)
17320
CODE IN HEX
131072
23521
CODE
25
33606
26875
45
13376
196608
6371
65
1295
85
488
V
REF
16
σ
105
= 2.5V
= 1.67
3
262144
0
125
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1.25
–0.5
–1.0
35000
30000
25000
20000
15000
10000
1.0
0.5
5000
–10
–12
Figure 9. Histogram of 131,072 Conversions of a DC Input at
0
12
10
–2
–4
–6
–8
0
8
6
4
2
0
–55
0
21 28 305
Figure 10. Zero Error, Gain Error vs. Temperature
–35
Figure 8. Differential Nonlinearity vs. Code
the Code Center (Internal Reference)
65536
665
–15
4726
5401
5
15505
TEMPERATURE (°C)
18613
CODE IN HEX
131072
25
CODE
28621
24350
45
16141
10173
65
GAIN ERROR
ZERO ERROR
196608
3807
2306
85
V
REF
297 108 3
= 2.048V
σ
105
= 2.04
262144
125
2