EVAL-AD7986EBZ Analog Devices Inc, EVAL-AD7986EBZ Datasheet - Page 9

• Manufacturer Part Number: EVAL-AD7986EBZ
• Description: 18-Bit A/D Converter Eval. Board
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7986EBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: AD7986
• Kit Contents: Board
• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 2M
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 29mW @ 2MSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7986
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = DVDD = VIO = 2.5 V, BVDD = 5.0 V, V
Figure 6. Histogram of DC Input at Code Center (External Reference)
Figure 7. Histogram of DC Input at Code Center (Internal Reference)
45,000
40,000
35,000
30,000
25,000
20,000
15,000
10,000
45,000
40,000
35,000
30,000
25,000
20,000
15,000
10,000
–0.5
–1.0
–1.5
–2.0
–2.5
2.5
2.0
1.5
1.0
0.5
5000
5000
0
0
0
0
3FFEC
3FF6
0
0
Figure 5. Integral Nonlinearity vs. Code
101
1
3FFEE
55
3FF8
65,536
1661
547
8250
3FF0
3662
35,204
3FFA
12,773
CODE IN HEX
CODE IN HEX
41,811
31,020
131,072
CODE
3FF2
39,395
34,894
3FFC
POSITIVE INL = +1.57LSB
NEGATIVE INL = –1.25LSB
29,138
3FF4
7662
11,107
196,608
3FFE
1418
2932
3FF6
68
407 35
REF
3FF8
3
0
= 5.0 V, external reference (PDREF = high, REFIN = low), unless otherwise noted.
262,144
0
0
Rev. B | Page 9 of 28
Figure 10. Histogram of DC Input at Code Transition (Internal Reference)
Figure 9. Histogram of DC Input at Code Transition (External Reference)
40,000
35,000
30,000
25,000
20,000
15,000
10,000
45,000
40,000
35,000
30,000
25,000
20,000
15,000
10,000
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
5000
5000
0
0
0
0
3FFEB 3FFED 3FFEF
3FF5
0
0
Figure 8. Differential Nonlinearity vs. Code
1
4
3FF7
3 150
142
65,536
2283
1282
10,211
3FF9
6513
38,665
18,953
CODE IN HEX
3FF1
CODE IN HEX
131,072
CODE
36,210
41,434
3FFB
POSITIVE DNL = +0.54LSB
NEGATIVE DNL = –0.60LSB
37,385
3FF3
30,897
22,077
3FFD
6399
196,608
6879
3FF5
1002
1438
3FFF
34
3FF7
165 16
AD7986
1
262,144
3FF9
0
1
0