AD7689BCPZ Analog Devices Inc, AD7689BCPZ Datasheet - Page 13

• Manufacturer Part Number: AD7689BCPZ
• Description: IC ADC 16BIT 250KSPS 8CH 20LFCSP
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7689BCPZ

• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Bits: 16
• Sampling Rate (per Second): 250k
• Number Of Converters: 1
• Power Dissipation (max): 21mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-VFQFN, CSP Exposed Pad
• Resolution (bits): 16bit
• Sampling Rate: 250kSPS
• Input Channel Type: Differential
• Supply Voltage Range - Analog: 2.3V To 5.5V
• Supply Voltage Range - Digital: 1.8V To 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

–100
–110
–120
–60
–70
–80
–90
–1
–2
–3
3
2
1
0
95
94
93
92
91
90
89
88
87
86
85
–55
–10
0
f
Figure 20. Offset and Gain Errors vs. Temperature
IN
–35
= 20kHz
UNIPOLAR ZERO
UNIPOLAR GAIN
BIPOLAR ZERO
BIPOLAR GAIN
–15
–8
Figure 19. SNR vs. Input Level
Figure 18. THD vs. Frequency
50
5
TEMPERATURE (°C)
FREQUENCY (kHz)
INPUT LEVEL (dB)
V
V
–6
REF
REF
25
= VDD = 5V
= VDD = 2.5V
100
45
V
V
V
V
REF
REF
REF
REF
–4
65
= VDD = 5V, –0.5dB
= VDD = 2.5V, –0.5dB
= VDD = 2.5V, –10dB
= VDD = 5V, –10dB
150
85
–2
105
125
200
0
Rev. B | Page 13 of 32
3000
2750
2500
2250
2000
1750
1500
1250
1000
3000
2750
2500
2250
2000
1750
1500
1250
1000
Figure 23. t
2.5
–55
25
20
15
10
5
0
0
f
S
Figure 22. Operating Currents vs. Temperature
2.5V INTERNAL REF
4.096V INTERNAL REF
INTERNAL BUFFER, TEMP ON
INTERNAL BUFFER, TEMP OFF
EXTERNAL REF, TEMP ON
EXTERNAL REF, TEMP OFF
VIO
–35
= 200kSPS
VDD = 5V, INTERNAL 4.096V REF
VDD = 5V, EXTERNAL REF
VDD = 2.5, EXTERNAL REF
Figure 21. Operating Currents vs. Supply
3.0
DSDO
20
–15
VDD = 3.3V, 25°C
VDD = 2.5V, 25°C
Delay vs. SDO Capacitance Load and Supply
3.5
SDO CAPACITIVE LOAD (pF)
5
VDD = 3.3V, 85°C
TEMPERATURE (°C)
40
VDD SUPPLY (V)
VDD = 2.5V, 85°C
VIO
25
4.0
60
45
AD7682/AD7689
4.5
65
VDD = 5V, 25°C
80
f
S
= 200kSPS
85
VDD = 5V, 85°C
5.0
100
105
5.5
125
100
90
80
70
60
50
40
30
20
120
180
160
140
120
100
80
60
40
20