Datasheet for AD7949BCPZRL7:
- Manufacturer Part Number : AD7949BCPZRL7
- Manufacturer : AD
- Description : 14-Bit, 8-Channel, 250 kSPS PulSAR ADC IC
- Series : AD7949
- Reference Price : USD 3.328
- Our Price : We have a better price, contact us by email
- Product Type : Precision A/D Converters
- Function : Multiplexed A/D Converters
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 20-Lead LFCSP (4mm x 4mm w/ EP)
- Pins : 20
- MFG Package Case : CP-20-10
- Part Type : REEL
- Standard Packing Type : Reel
- Standard Packing Quantity : 1500
- Working Temperature : -40 to 85C
- Other Part Number : AD7949BCPZRL7
- 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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- 14-bit resolution with no missing codes
- 8-channel multiplexer with choice of inputs
- Unipolar single-ended
- Differential (GND sense)
- Pseudobipolar
- Throughput: 250 kSPS
- INL/DNL: ±0.5/±0.25 LSB typical
- SINAD: 85 dB @ 20 kHz
- THD: −100 dB @ 20 kHz
- Analog input range: 0 V to VREF with VREF up to VDD
- Multiple reference types
- Internal selectable 2.5 V or 4.096 V
- External buffered (up to 4.096 V)
- External (up to VDD)
- Internal temperature sensor (TEMP)
- Channel sequencer, selectable 1-pole filter, busy indicator
- No pipeline delay, SAR architecture
- Single-supply 2.3 V to 5.5 V operation with 1.8 V to 5.5 V logic interface
- Serial interface compatible with SPI, MICROWIRE, QSPI, and DSP
- Power dissipation
- 2.9 mW at 2.5 V/200 kSPS
- 10.8 mW at 5 V/250 kSPS
- Standby current: 50 nA
- 20-lead 4 mm × 4 mm LFCSP package
AD7949-EP supports defense and aerospace applications (AQEC standard)
- Download AD7949-EP data sheet
- Military temperature range (−55°C to +125°C)
- Controlled manufacturing baseline
- Enhanced product change notification
- Qualification data available on request
- V62/12645 DSCC Drawing Number
The AD7949 is an 8-channel, 14-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD.
The AD7949 contains all components for use in a multichannel, low power data acquisition system, including a true 14-bit SAR ADC with no missing codes; an 8-channel, low crosstalk multiplexer that is useful for configuring the inputs as single-ended (with or without ground sense), differential, or bipolar; an internal low drift reference (selectable 2.5 V or 4.096 V) and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order.
The AD7949 uses a simple SPI interface for writing to the configuration register and receiving conversion results. The SPI interface uses a separate supply, VIO, which is set to the host logic level. Power dissipation scales with throughput.
The AD7949 is housed in a tiny 20-lead LFCSP with operation specified from −40°C to +85°C.
Applications
- Multichannel system monitoring
- Battery-powered equipment
- Medical instruments: ECG/EKG
- Mobile communications: GPS
- Personal digital assistants
- Power line monitoring
- Data acquisition
- Seismic data acquisition systems
- Instrumentation
- Process control
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.
