AD9142 Datasheet, PDF (11/65 Pages) Analog Devices – Dual, 16-Bit, 1600 MSPS, TxDAC Digital-to-Analog Converter

Data Sheet
AD9142
Pin No.
25
26
27
28
29
30
31
32
33
34
35
36
Mnemonic
D9N
D8P
D8N
DCIP
DCIN
D7P
D7N
D6P
D6N
D5P
D5N
DVDD18
37
D4P
38
D4N
39
D3P
40
D3N
41
D2P
42
D2N
43
DVDD18
44
D1P
45
D1N
46
D0P
47
D0N
48
DVDD18
49
DVDD18
50
IRQ2
51
IRQ1
52
SDIO
53
SCLK
54
CS
55
AVDD33
56
IOUT2P
57
IOUT2N
58
AVDD33
59
CVDD18
60
CVDD18
61
DACCLKN
62
DACCLKP
63
CVDD18
64
CVDD18
65
AVDD33
66
IOUT1N
67
IOUT1P
68
AVDD33
69
FSADJ
70
REFIO
71
CVDD18
72
CVDD18
EPAD
Description
Data Bit 9, Negative.
Data Bit 8, Positive.
Data Bit 8, Negative.
Data Clock Input, Positive.
Data Clock Input, Negative.
Data Bit 7, Positive.
Data Bit 7, Negative.
Data Bit 6, Positive.
Data Bit 6, Negative.
Data Bit 5, Positive.
Data Bit 5, Negative.
1.8 V Digital Supply. Pin 36 supplies power to the digital core, digital data ports, serial port input/output pins,
RESET, IRQ1, and IRQ2.
Data Bit 4, Positive.
Data Bit 4, Negative.
Data Bit 3, Positive.
Data Bit 3, Negative.
Data Bit 2, Positive.
Data Bit 2, Negative.
1.8 V Digital Supply. Pin 43 supplies power to the digital core, digital data ports, serial port input/output pins,
RESET, IRQ1, and IRQ2.
Data Bit 1, Positive.
Data Bit 1, Negative.
Data Bit 0 (LSB), Positive.
Data Bit 0 (LSB), Negative.
1.8 V Digital Supply. Pin 48 supplies power to the digital core, digital data ports, serial port input/output pins,
RESET, IRQ1, and IRQ2.
1.8 V Digital Supply. Pin 49 supplies power to the digital core, digital data ports, serial port input/output
pins, RESET, IRQ1, and IRQ2.
Second Interrupt Request. Open-drain, active low output. Connect an external pull-up to DVDD18 through a 10 kΩ resistor.
First Interrupt Request. Open-drain, active low output. Connect an external pull-up to DVDD18 through a 10 kΩ resistor.
Serial Port Data Input/Output. CMOS levels with respect to DVDD18.
Serial Port Clock Input. CMOS levels with respect to DVDD18.
Serial Port Chip Select. Active low (CMOS levels with respect to DVDD18).
3.3 V Analog Supply.
QDAC Positive Current Output.
QDAC Negative Current Output.
3.3 V Analog Supply.
1.8 V Clock Supply. Supplies clock receivers and clock distribution.
1.8 V Clock Supply. Supplies clock receivers and clock distribution.
DAC Clock Input, Negative.
DAC Clock Input, Positive.
1.8 V Clock Supply. Supplies clock receivers and clock distribution.
1.8 V Clock Supply. Supplies clock receivers and clock distribution.
3.3 V Analog Supply.
IDAC Negative Current Output.
IDAC Positive Current Output.
3.3 V Analog Supply.
Full-Scale Current Output Adjust. Place a 10 kΩ resistor from this pin to AVSS.
Voltage Reference. Nominally 1.2 V output. Decouple REFIO to AVSS.
1.8 V Clock Supply. Pin 71 supplies the clock receivers, clock multiplier, and clock distribution.
1.8 V Clock Supply. Pin 72 supplies the clock receivers, clock multiplier, and clock distribution.
Exposed Pad. The exposed pad (EPAD) must be soldered to the ground plane (AVSS). The EPAD provides an
electrical, thermal, and mechanical connection to the board.
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