AD7329 Analog Devices, AD7329 Datasheet - Page 14

• Manufacturer Part Number: AD7329
• Description: 1 MSPS , 8-Channel, Software Selectable True Bipolar Input, 12-Bit Plus Sign A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7329

• Resolution (bits): 13bit
• # Chan: 8
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni,SE-Uni
• Ain Range: Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Bip 10V,Bip 2.5V,Bip 5.0V,Uni (Vref),Uni 10V
• Adc Architecture: SAR
• Pkg Type: SOP

AD7329
Figure 22. THD vs. Analog Input Frequency for Various Source Impedances,
–50
–55
–60
–65
–70
–75
–80
–85
–90
10
SINGLE-ENDED MODE
V
V
INTERNAL REFERENCE
AD8021 BETWEEN MUX
DD
CC
AND ADC
= V
= 12V, V
DRIVE
IN
+ PINS
ANALOG INPUT FREQUENCY (kHz)
SS
= 5V
= –12V
Single-Ended Mode
OUT
+
100
±10V RANGE
±2.5V RANGE
R
R
R
R
R
R
R
R
R
R
IN
IN
IN
IN
IN
IN
IN
IN
IN
IN
= 2000Ω
= 1000Ω
= 600Ω
= 100Ω
= 50Ω
= 2000Ω
= 1000Ω
= 600Ω
= 100Ω
= 50Ω
1000
Rev. A | Page 14 of 40
–76
–78
–80
–82
–84
–86
–88
Figure 23. THD vs. Supply Voltage at 500 kSPS and 1 MSPS
±5
10kHz/500kSPS
±7
with 10 kHz and 30 kHz Input Tone
SUPPLY VOLTAGE (V) (V
±9
30kHz/500kSPS
±11
±5V RANGE
V
INTERNAL REFERENCE
SINGLE-ENDED MODE
AD8021 BETWEEN MUX
AND ADC
CC
30kHz/1MSPS
10kHz/1MSPS
DD
±13
= V
= +, V
DRIVE
IN
SS
+ PINS
= 5V
±15
= –)
±17
OUT
+