AD7949BCPZRL7 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7949BCPZRL7
Manufacturer

ADI
ChipWorker Part#

CW1112000
Category

Analog to Digital, ADC IC
Package

LFCSP-20
Description

IC ADC 14Bit 250KSPS 8CH 20LFCSP
Documentation

Datasheet

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AD7949BCPZRL7 Specifications

Attribute	Attribute Value

Part Number	AD7949BCPZRL7
Manufacturer	ADI
ChipWorker Part#	CW1112000
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	LFCSP-20
Number of Circuits	1 Circuit
Number of Channels	8 Channel
Number of Positions	20 Position
Number of Bits	14 Bit
Power Dissipation	13.5 mW
Sample Rate	250 ksps
Power Consumption	13.5 mW
Resolution (Bits)	14.0 Bit
Number of ADCs	1 ADC
Number of Inputs	8 Input
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	15.5 mW
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	2.3 V
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Size-Length	4 mm
Size-Width	4 mm
Size-Height	0.83 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
Mil-Spec	No
ECCN Code	EAR99

Product Description

Product Details
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
### Features and Benefits
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
See data sheet for additional features
**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

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