AD7262 - ADI

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

Part No

AD7262
Manufacturer

ADI
ChipWorker Part#

CW353150330
RoHS

Lead free / RoHS Compliant
Description

1MSPS, 12Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators
Documentation

Datasheet

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AD7262 Specifications

Attribute	Attribute Value

Part Number	AD7262
Manufacturer	ADI
ChipWorker Part#	CW353150330
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.
The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Comparator C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred.
The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.
**Product Highlights**
1. Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals.
2. Each PGA is followed by a dual simultaneous sampling ADC, featuring throughput rates of 1 MSPS per ADC for the AD7262. The conversion results of both ADCs are simultaneously available on separate data lines or in succession on one data line if only one serial port is available.
3. Four integrated comparators that can be used to count signals from pole sensors in motor control applications.
4. Internal 2.5 V reference.
### Features and Benefits
Dual simultaneous sampling 12-bit, 2-channel analog-to-digital converter (ADC)
True differential analog inputs
Programmable gain stage: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128
Throughput rate per ADC
1 MSPS for AD7262
500 kSPS for AD7262-5
Analog input impedance: >1 GΩ
Wide input bandwidth
−3 dB bandwidth: 1.7 MHz at gain = 2
4 on-chip comparators
SNR: 73 dB typical at gain = 2, 66 dB typical at gain = 32
Device offset calibration, system gain calibration
On-chip reference: 2.5 V
−40°C to +105°C operation
High speed serial interface
SPI/QSPI™/MICROWIRE/DSP compatible
48-lead LFCSP and LQFP

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