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Part Number: AD9445
Description: The AD9445 is a 14-bit, monolithic, sampling analog-to-digital converter (ADC) with an on-chip IF sampling track-and-ho...
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AD9445
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General Description
AD9445 General Description
The AD9445 is a 14-bit, monolithic, sampling analog-to-digital converter (ADC) with an on-chip IF sampling track-and-hold circuit. It is optimized for performance, small size, and ease of use. The product operates at up to a 125 MSPS conversion rate and is designed for multicarrier, multimode receivers, such as those found in cellular infrastructure equipment.
The ADC requires 3.3 V and 5.0 V power supplies and a low voltage differential input clock for full performance operation. No external reference or driver components are required for many applications. Data outputs are CMOS or LVDS compatible (ANSI-644 compatible) and include the means to reduce the overall current needed for short trace distances.
Optional features allow users to implement various selectable operating conditions, including input range, data format select, high IF sampling mode, and output data mode.
The AD9445 is available in a Pb-free, 100-lead, surface-mount, plastic package (100-lead TQFP/EP) specified over the industrial temperature range −40°C to +85°C.
AD9445 Maximum Ratings
| Parameter | With Respect To | Rating | |
| ELECTRICAL | |||
| AVDD1 | AGND | −0.3 V to +4 V | |
| AVDD2 | AGND | −0.3 V to +6 V | |
| DRVDD | DGND | −0.3 V to +4 V | |
| AGND | DGND | −0.3 V to +0.3 V | |
| AVDD1 | DRVDD | −4 V to +4 V | |
| AVDD2 | DRVDD | −4 V to +6 V | |
| AVDD2 | AVDD1 | −4 V to +6 V | |
| D0± to D13± | DGND | 0.3 V to DRVDD + 0.3 V | |
| CLK+/CLK− | AGND | 0.3 V to AVDD1 + 0.3 V | |
| OUTPUT MODE, DCS | AGND | 0.3 V to AVDD1 + 0.3 V | |
| MODE, DFS, SFDR, | |||
| RF ENABLE | |||
| VIN+, VIN− | AGND | 0.3 V to AVDD2 + 0.3 V | |
| VREF | AGND | 0.3 V to AVDD1 + 0.3 V | |
| SENSE | AGND | 0.3 V to AVDD1 + 0.3 V | |
| REFT, REFB | AGND | 0.3 V to AVDD1 + 0.3 V | |
| ENVIRONMENTAL | |||
| Storage Temperature | 65°C to +125°C | ||
| Range | |||
| Operating Temperature | 40°C to +85°C | ||
| Range | |||
| Lead Temperature | 300°C | ||
| (Soldering 10 sec) | |||
| Junction Temperature | 150°C |
AD9445 Features
125 MSPS guaranteed sampling rate (AD9445BSV-125)
78.3 dBFS SNR/92 dBFS SFDR with 30 MHz input (3.2 V p-p)
74.8 dBFS SNR/95 dBFS SFDR with 30 MHz input (2.0 V p-p)
77.0 dBFS SNR/87 dBFS SFDR with 170 MHz input (3.2 V p-p)
74.6 dBFS SNR/95 dBFS SFDR with 170 MHz input (2.0 V p-p)
73.0 dBFS SNR/88 dBFS SFDR with 300 MHz input (2.0 V p-p)
102 dBFS 2-tone SFDR with 30 MHz and 31 MHz
92 dBFS 2-tone SFDR with 170 MHz and 171 MHz
60 fsec rms jitter
Excellent linearity
DNL = ±0.25 LSB typical
INL = ±0.8 LSB typical
2.0 V p-p to 4.0 V p-p differential full-scale input
Buffered analog inputs
LVDS outputs (ANSI-644 compatible) or CMOS outputs
Data format select (offset binary or twos complement)
Output clock available
3.3 V and 5 V supply operation
78.3 dBFS SNR/92 dBFS SFDR with 30 MHz input (3.2 V p-p)
74.8 dBFS SNR/95 dBFS SFDR with 30 MHz input (2.0 V p-p)
77.0 dBFS SNR/87 dBFS SFDR with 170 MHz input (3.2 V p-p)
74.6 dBFS SNR/95 dBFS SFDR with 170 MHz input (2.0 V p-p)
73.0 dBFS SNR/88 dBFS SFDR with 300 MHz input (2.0 V p-p)
102 dBFS 2-tone SFDR with 30 MHz and 31 MHz
92 dBFS 2-tone SFDR with 170 MHz and 171 MHz
60 fsec rms jitter
Excellent linearity
DNL = ±0.25 LSB typical
INL = ±0.8 LSB typical
2.0 V p-p to 4.0 V p-p differential full-scale input
Buffered analog inputs
LVDS outputs (ANSI-644 compatible) or CMOS outputs
Data format select (offset binary or twos complement)
Output clock available
3.3 V and 5 V supply operation
AD9445 Typical Application
Multicarrier, multimode cellular receivers
Antenna array positioning
Power amplifier linearization
Broadband wireless
Radar
Infrared imaging
Medical imaging
Communications instrumentation
Antenna array positioning
Power amplifier linearization
Broadband wireless
Radar
Infrared imaging
Medical imaging
Communications instrumentation
AD9445
PDF/DataSheet Download
- Datasheet: AD9445
- File Size: 988462 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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