Datasheet for AD6644ASTZ-65:
- Manufacturer Part Number : AD6644ASTZ-65
- Manufacturer : AD
- Description : 14-Bit, 40 MSPS/65 MSPS Analog-to-Digital Converter IC
- Series : AD6644
- Reference Price : USD 37.56
- Our Price : We have a better price, contact us by email
- Product Type : High Speed A/D Converters >10 MSPS
- Function : Standard High Speed A/D Converters >20 MSPS
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 52-Lead LQFP (10mm x 10mm)
- Pins : 52
- MFG Package Case : ST-52
- Part Type : OTH
- Standard Packing Type : Tray
- Standard Packing Quantity : 160
- Working Temperature : -25 to 85C
- Other Part Number : AD6644ASTZ-65
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- 65 MSPS guaranteed sample rate
- 40 MSPS version available
- Sampling jitter < 300 fs
- 100 dB multitone SFDR
- 1.3 W power dissipation
- Differential analog inputs
- Pin compatible to AD6645
- Twos complement digital output format
- 3.3 V CMOS compatible
- Data-ready for output latching
The AD6644 is a high speed, high performance, monolithic 14-bit analog-to-digital converter (ADC). All necessary functions, including track-and-hold (TH) and reference are included on- chip to provide a complete conversion solution. The AD6644 provides CMOS-compatible digital outputs. It is the third generation in a wideband ADC family, preceded by the AD9042 (12-bit 41 MSPS) and the AD6640 (12-bit 65 MSPS, IF sampling).
Designed for multichannel, multimode receivers, the AD6644 is part of the Analog Devices, Inc. new SoftCell® transceiver chipset. The AD6644 achieves 100 dB multitone, spurious-free dynamic range (SFDR) through the Nyquist band. This break- through performance eases the burden placed on multimode digital receivers (software radios) which are typically limited by the ADC. Noise performance is exceptional; typical signal-to- noise ratio is 74 dB.
The AD6644 is also useful in single channel digital receivers designed for use in wide-channel bandwidth systems (CDMA, WCDMA). With oversampling, harmonics can be placed outside the analysis bandwidth. Oversampling also facilitates the use of decimation receivers (such as the AD6620), allowing the noise floor in the analysis bandwidth to be reduced. By replacing traditional analog filters with predictable digital components, modern receivers can be built using fewer RF components, resulting in decreased manufacturing costs, higher manufacturing yields, and improved reliability.
The AD6644 is built on the Analog Devices high speed complementary bipolar process (XFCB) and uses an innovative, multipass circuit architecture. Units are packaged in a 52-lead plastic low profile quad flat package (LQFP) specified from – 25°C to +85°C.
Product Highlights
- Guaranteed sample rate is 65 MSPS.
- Fully differential analog input stage.
- Digital outputs can be run on 3.3 V supply for easy interface to digital ASICs.
- Complete solution: reference and track-and-hold.
- Packaged in small, surface-mount, plastic, 52-lead LQFP.
Applications
- Multichannel, multimode receivers
- AMPS, IS-136, CDMA, GSM, WCDMA
- Single channel digital receivers
- Antenna array processing
- Communications instrumentation
- Radar, infrared imaging
- Instrumentation
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
