AD7998BRU-1 Analog Devices Inc, AD7998BRU-1 Datasheet - Page 12

• Manufacturer Part Number: AD7998BRU-1
• Description: IC,Data Acquisition System,8-CHANNEL,12-BIT,TSSOP,20PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of AD7998BRU-1

• Number Of Bits: 12
• Sampling Rate (per Second): 188k
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Power Dissipation (max): 2.2mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-AD7998CBZ - BOARD EVALUATION FOR AD7998CBZ
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7997/AD7998
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–120
–110
–20
–40
–60
–80
–10
–30
–50
–70
–90
100
30
90
80
70
60
50
40
20
0
Figure 4. AD7998 Dynamic Performance with 5 V Supply and
Figure 5. AD7997 Dynamic Performance with 5 V Supply and
10
0
0
V
DD
= 3V
Figure 6. PSRR vs. Supply Ripple Frequency
10
SUPPLY RIPPLE FREQUENCY (kHz)
2.5 V Reference, 121 kSPS, Mode 1
2.5 V Reference, 121 kSPS, Mode 1
V
INPUT FREQUENCY (kHz)
DD
20
20
= 5V
FREQUENCY (kHz)
100
30
V
200mV p-p SINE WAVE
ON V
2nF CAPACITOR ON V
DD
= 3V/5V
40
40
DD
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
SNR = 71.84dB
SINAD = 71.68dB
THD = 86.18dB
SFDR = –88.70dB
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
SINAD = 61.63dB
THD = 91.82dB
SFDR = –94.95dB
50
DD

1000
60
60
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–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
65
55
75
70
60
50
45
40
Figure 9. Typical DNL, V
Figure 8. Typical INL, V
0
0
1
0
0
Figure 7. AD7998 SINAD vs. Analog Input Frequency for
500
500
Various Supply Voltages, 3.4 MHz f
1000
1000
10
1500
1500
FREQUENCY (kHz)
DD
DD
= 5.5 V, Mode 1, 3.4 MHz f
= 5.5 V, Mode 1, 3.4 MHz f
CODE
2000
CODE
2000
V
DD
= 4.5V
2500
2500
V
DD
V
DD
100
= 3V
= 3.3V
3000
3000
SCL
, 136 kSPS
V
DD
V
V
= 2.7V
3500
3500
DD
DD
SCL
SCL
= 5.5V
, 121 kSPS
= 5V
, 121 kSPS
4000
4000
1000