AD7262
PRODUCTION1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators
- Part Models
- 4
- 1ku List Price
- Starting From $5.41
Part Details
- 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
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
- Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals.
- 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.
- Four integrated comparators that can be used to count signals from pole sensors in motor control applications.
- Internal 2.5 V reference.
Documentation
Data Sheet 1
Technical Articles 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7262BCPZ-RL7 | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) | ||
| AD7262BSTZ | 48-Lead LQFP (7mm x 7mm) | ||
| AD7262BSTZ-5 | 48-Lead LQFP (7mm x 7mm) | ||
| AD7262BSTZ-5-RL7 | 48-Lead LQFP (7mm x 7mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea. |
||
| AD7262BCPZ-RL7 | PRODUCTION | |
|
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages |
||
| AD7262BSTZ | PRODUCTION | |
| AD7262BSTZ-5 | PRODUCTION | |
| AD7262BSTZ-5-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Evaluation Kits
AD7262 Evaluation Board