AD9201ARS Analog Devices Inc, AD9201ARS Datasheet - Page 11

• Manufacturer Part Number: AD9201ARS
• Description: IC ADC CMOS 10BIT DUAL 28-SSOP
• Manufacturer: Analog Devices Inc

Specifications of AD9201ARS

• Mounting Type: Surface Mount
• Rohs Status: RoHS non-compliant
• Number Of Bits: 10
• Sampling Rate (per Second): 20M
• Data Interface: Parallel
• Number Of Converters: 2
• Power Dissipation (max): 245mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SSOP (0.200", 5.30mm Width)
• Input Channels Per Adc: 2
• No. Of Channels: 2
• Peak Reflow Compatible (260 C): No
• Inl ±: 2.5LSB
• Sample Rate: 20MSPS
• No. Of Bits: 10 Bit
• Leaded Process Compatible: No
• Dnl±: 1LSB
• Number Of Elements: 2
• Resolution: 10Bit
• Architecture: Pipelined
• Input Polarity: Unipolar
• Input Type: Voltage
• Rated Input Volt: 1.5V
• Differential Input: Yes
• Power Supply Requirement: Analog and Digital
• Single Supply Voltage (typ): 3V
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Differential Linearity Error: ±1LSB
• Integral Nonlinearity Error: ±2.5LSB
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Package Type: SSOP
• Lead Free Status / Rohs Status: Not Compliant

Figure 26. Reference Buffer Equivalent Circuit and Exter-
nal Decoupling Recommendation
For best results in both noise suppression and robustness
against crosstalk, the 4 capacitor buffer decoupling arrangement
shown in Figure 26 is recommended. This decoupling should
feature chip capacitors located close to the converter IC. The
capacitors are connected to either IREFT/IREFB or QREFT/
QREFB. A connection to both sides is not required.
DRIVING THE AD9201
Figure 27 illustrates the use of an AD8051 to drive the AD9201.
Even though the AD8051 is specified with 3 V and 5 V power,
the best results are obtained at 5 V power. The ADC input
span is 2 V.
REV. D
10 F
10 F
0.1 F
0.1 F
0.1 F
REFSENSE
0.1 F
IREFT
AVSS
IREFB
VREF
10k
10k
CORE
ADC
AD9201
INTERNAL
CONTROL
LOGIC
1V
QREFT
QREFB
0.1 F
0.1 F
10 F
0.1 F
–11–
50
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
0.0E+0
10
0
Figure 28. AD8051/AD9201 Performance
3
2
1.0E+6
2ND
AD8051
2.0E+6
4TH
6
3.0E+6
1k
1k
6TH
24
8TH
4.0E+6
Figure 27.
0.33 F
0.01 F
5.0E+6
1k
6.0E+6
VREF
7TH
7.0E+6
22
22
5TH
8.0E+6
10pF
10pF
3RD
AD9201
9.0E+6
FUND
17
16
10.0E+6
ADC