AD9445: 14-Bit, 105 MSPS / 125 MSPS A/D Converter
The AD9445 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, IF sampling track-and-hold circuit and is optimized for power, small size, and ease of use. The ...More
AD9445: 14-Bit, 105 MSPS / 125 MSPS A/D Converter
Product Description
The AD9445 is a 14-bit monolithic, sampling analog-to-digital converter (ADC) with an on-chip, IF sampling track-and-hold circuit and is optimized for power, small size, and ease of use. The product operates at up to an 105 MSPS conversion rate and is optimized for multi-carrier, 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 LVDS-compatible (ANSI-644) or CMOS-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 data format select and output data mode.
The AD9445 is available in a 100-lead surface-mount plastic package (100-lead TQFP/EP) specified over the industrial temperature range (−40°C to +85°C).
Product Highlights
1. High performance: Outstanding SFDR performance for multicarrier, multimode 3G and 4G cellular base station receivers.
2. Ease of use: On-chip reference and track-and-hold. An output clock simplifies data capture.
3. Packaged in a Pb-free, 100-lead TQFP/EP.
4. Clock duty cycle stabilizer (DCS) maintains overall ADC performance over a wide range of clock pulse widths.
5. OR (out-of-range) outputs indicate when the signal is beyond the selected input range.
Applications
Features
- 125 MSPS guaranteed sampling rate (AD9445BSV-125)
- 100 dB two-tone SFDR with 30 MHz and
31 MHz - 73.5 dB SNR with 70 MHz input
- 85 dBc SFDR with 225 MHz input
- Excellent linearity
DNL = ±0.25 LSB typical
INL = ±0.8 LSB typical
- 2.3 W power dissipation
- 3.3 V and 5 V supply operation
- 2.0 V p-p to 3.2 V p-p differential full-scale input
- LVDS outputs (ANSI-644 compatible) or CMOS outputs
- Data format select (Offset Binary or 2’s compliment)
- Output clock available
Diagrams
- Enlarge
- Other Diagrams
- Symbols and Footprints
Functional Block Diagram for AD9445
14-Bit, 105 MSPS / 125 MSPS A/D Converter
Other Diagrams for AD9445
14-Bit, 105 MSPS / 125 MSPS A/D Converter
100-Ld TQFP/EP LVDS Mode Pin Configuration
100-ld TQFP/EP CMOS Mode Pin Configuration
Functional Block Diagram for AD9445
AD7682 - 16-Bit, 4-Channel, 250 kSPS PulSAR® ADC
AD7401A - Isolated Sigma-Delta Modulator
AD7262 - True Differential, Dual, 1 MSPS, 14-Bit/12-Bit, 2-Channel SAR ADC With PGA
EVAL-CED - Converter Evaluation and Development (CED) Board
| Part# | Res | Throughput Rate | # of Inputs | Operating Pwr Diss |
|---|---|---|---|---|
| AD9254 | 14 | 150MSPS | 1 | 470mW |
| AD9445-125 | 14 | 125MSPS | 1 | 2.6W |
| AD9246-125 | 14 | 125MSPS | 1 | 458mW |
| AD9640-150 | 14 | 150MSPS | 2 | 938mW |
| AD9430-170 | 12 | 170MSPS | 1 | 1.43W |
| AD9230-170 | 12 | 170MSPS | 1 | 407mW |
| AD9230-250 | 12 | 250MSPS | 1 | 463mW |
| AD9430-210 | 12 | 210MSPS | 1 | 1.7W |
| AD9233-125 | 12 | 125MSPS | 1 | 425mW |
| AD9461 | 16 | 130MSPS | 1 | 2.4W |
| AD9626-170 | 12 | 170MSPS | 1 | 291mW |
AD9445 Model Options
| Model | Status | Package | Pins | Temp. Range |
Price* (1000 pcs.) |
Available | ROHS Compilant | Samples Cart | Purchase Cart |
|---|---|---|---|---|---|---|---|---|---|
| AD9445-BB-LVDS/PCB | Obs | EVALUATION BOARDS | 100 | Comm. | - | - | N | Contact ADI | Contact ADI |
| AD9445-IF-LVDS/PCB | Obs | EVALUATION BOARDS | 100 | Comm. | - | - | N | Contact ADI | Contact ADI |
| AD9445BB-LVDS/PCBZ | Prodn | EVALUATION BOARDS | 100 | Comm. | $200.00 | 07/04/2008 | Y | Contact ADI | Add To Cart |
| AD9445BSVZ-105 | Prodn | 100 ld TQFP w/ 9.5mm exposed pad | 100 | Ind | $41.00 | 07/11/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD9445BSVZ-125 | Prodn | 100 ld TQFP w/ 9.5mm exposed pad | 100 | Ind | $55.00 | 07/04/2008 |
Y
Material Declaration |
Contact ADI | Add To Cart |
| AD9445IF-LVDS/PCBZ | Prodn | EVALUATION BOARDS | 100 | Comm. | $200.00 | 07/04/2008 | Y | Contact ADI | Add To Cart |
Help
- Pre-Release: The model has not been released to general production, but samples may be available.
- Production: The model is currently being produced, and generally available for purchase and sampling.
- Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
- Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
For detailed drawings and chemical composition please consult our Package Site
- Commercial: 0 to +70 degrees Celsius
- Military : -55 to +125 degrees Celsius
- Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
- Automotive: -40 to +125 degrees Celsius
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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