AD7658BSTZ Analog Devices Inc, AD7658BSTZ Datasheet - Page 14

• Manufacturer Part Number: AD7658BSTZ
• Description: IC ADC 12BIT 6CH 250KSPS 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD7658BSTZ

• Data Interface: Serial, Parallel
• Number Of Bits: 12
• Sampling Rate (per Second): 250k
• Number Of Converters: 6
• Power Dissipation (max): 143mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Resolution (bits): 12bit
• Sampling Rate: 250kSPS
• Input Channel Type: Single Ended
• Supply Voltage Range - Digital: 4.75V To 5.25V
• Supply Current: 26mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-AD7658CBZ - BOARD EVAL FOR AD7658
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

AD7656/AD7657/AD7658
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–120
–140
–160
–100
–120
–140
–160
–0.5
–1.0
–1.5
–2.0
–20
–40
–60
–80
–20
–40
–60
–80
2.0
1.5
1.0
0.5
0
0
0
0
0
0
AV
V
f
2 × V
INL WCP = 0.64LSB
INL WCN = –0.76LSB
SAMPLE
DD
CC
/V
REF
/DV
Figure 4. AD7656 FFT for ±10 V Range
SS
Figure 5. AD7656 FFT for ±5 V Range
10k
= 250kSPS
CC
= ±12V
RANGE
25
25
Figure 6. AD7656 Typical INL
/V
DRIVE
20k
= +5V
FREQUENCY (kHz)
FREQUENCY (kHz)
50
50
30k
CODE
75
V
AV
INTERNAL REFERENCE
±5V RANGE
T
f
f
SNR = +86.252dB
SINAD = +86.196dB
THD = –105.11dB
SFDR = –98.189dB
75
40k
V
AV
INTERNAL REFERENCE
±10V RANGE
T
f
f
SNR = +87.33dB
SINAD = +87.251dB
THD = –104.32dB
SFDR = –104.13dB
S
IN
S
IN
A
DD
A
DD
= 250kSPS
= 250kSPS
CC
CC
= 50kHz
= 25°C
= 50kHz
= 25°C
/V
/V
/DV
/DV
SS
SS
= ±15V
= ±12V
CC
CC
50k
/V
/V
100
100
DRIVE
DRIVE
60k 65535
= +5V
= +5V
125
125
Rev. A | Page 14 of 32
–0.5
–1.0
–1.5
–2.0
–0.4
–0.8
–1.2
–1.6
–2.0
–0.4
–0.8
–1.2
–1.6
–2.0
2.0
1.5
1.0
0.5
2.0
1.6
1.2
0.8
0.4
2.0
1.6
1.2
0.8
0.4
0
0
0
0
0
0
AV
V
f
2 × V
DNL WCP = 0.81LSB
DNL WCN = –0.57LSB
AV
V
SAMPLE
DD
DD
CC
CC
/V
/V
2000
2000
REF
/DV
/DV
SS
SS
10k
= 250kSPS
CC
= ±12V
= ±12V
RANGE
CC
Figure 7. AD7656 Typical DNL
Figure 9. AD7657 Typical DNL
Figure 8. AD7657 Typical INL
/V
/V
4000
4000
DRIVE
DRIVE
20k
= +5V
= +5V
6000
6000
30k
CODE
CODE
CODE
8000
8000
10000 12000 14000 16383
10000 12000 14000 16383
40k
AV
V
f
2 × V
SAMPLE
DD
CC
/V
REF
/DV
SS
= ±12V
= 250kSPS
CC
RANGE
50k
/V
DRIVE
60k 65535
= +5V