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- AD7768BSTZ - ADI
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Manufacturer:ADI
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ManyChip's Part#:MC745900
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Category:Analog to Digital, ADC IC
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Package:LQFP-64
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Datasheet:Datasheet 3D Model
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Description:Analog to Digital Converter, 8CH, 24Bit, 256KSPS, Single, Dual (+/-), 2.25V, 5V, LQFP
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Stock Locations:
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Availability:250 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 45.83
Updated at 01/11/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- Product Details
- The AD7768/AD7768-4 are 8-channel and 4-channel, simultaneous sampling sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), respectively, with a Σ-Δ modulator and digital filter per channel, enabling synchronized sampling of ac and dc signals.
- The AD7768/AD7768-4 achieve 108 dB dynamic range at a maximum input bandwidth of 110.8 kHz, combined with typical performance of ±2 ppm INL, ±50 µV offset error, and ±30 ppm gain error.
- The AD7768/AD7768-4 user can trade off input bandwidth, output data rate, and power dissipation, and select one of three power modes to optimize for noise targets and power consumption. The flexibility of the AD7768/AD7768-4 allows them to become reusable platforms for low power dc and high performance ac measurement modules.
- The AD7768/AD7768-4 have three modes: fast mode (256 kSPS maximum, 110.8 kHz input bandwidth, 51.5 mW per channel), median mode (128 kSPS maximum, 55.4 kHz input bandwidth, 27.5 mW per channel) and eco mode (32 kSPS maximum, 13.8 kHz input bandwidth, 9.375 mW per channel).
- The AD7768/AD7768-4 offer extensive digital filtering capabilities, such as a wideband, low ±0.005 dB pass-band ripple, antialiasing low-pass filter with sharp roll-off, and 105 dB stop band attenuation at the Nyquist frequency.
- Frequency domain measurements can use the wideband linear phase filter. This filter has a flat pass band (±0.005 dB ripple) from dc to 102.4 kHz at 256 kSPS, from dc to 51.2 kHz at 128 kSPS, or from dc to 12.8 kHz at 32 kSPS.
- The AD7768/AD7768-4 also offer sinc response via a sinc5 filter, a low latency path for low bandwidth, and low noise measurements. The wideband and sinc5 filters can be selected and run on a per channel basis.
- Within these filter options, the user can improve the dynamic range by selecting from decimation rates of ×32, ×64, ×128, ×256, ×512, and ×1024. The ability to vary the decimation filtering optimizes noise performance to the required input bandwidth.
- Embedded analog functionality on each ADC channel makes design easier, such as a precharge buffer on each analog input that reduces analog input current and a reference precharge buffer per channel reduces input current and glitches on the reference input terminals.
- The device operates with a 5 V AVDD1A and AVDD1B supply, a 2.25 V to 5.0 V AVDD2A and AVDD2B supply, and a 2.5 V to 3.3 V or 1.8 V IOVDD supply (see the 1.8 V IOVDD Operation section for specific requirements for operating at 1.8 V IOVDD). The device requires an external reference; the absolute input reference voltage range is 1 V to AVDD1 − AVSS.
- For the purposes of clarity within this document, the AVDD1A and AVDD1B supplies are referred to as AVDD1 and the AVDD2A and AVDD2B supplies are referred to as AVDD2. For the negative supplies, AVSS refers to the AVSS1A, AVSS1B, AVSS2A, AVSS2B, and AVSS pins.
- The specified operating temperature range is −40°C to +105°C. The device is housed in a 10 mm × 10 mm 64-lead LQFP package with a 12 mm × 12 mm printed circuit board (PCB) footprint. Throughout this data sheet, multifunction pins, such as XTAL2/MCLK, are referred to either by the entire pin name or by a single function of the pin, for example MCLK, when only that function is relevant.
- Applications
- Data acquisition systems: USB/PXI/Ethernet
- Instrumentation and industrial control loops
- Audio test and measurement
- Vibration and asset condition monitoring
- 3-phase power quality analysis
- Sonar
- High precision medical electroencephalogram (EEG)/electromyography (EMG)/electrocardiogram (ECG)
- ### Features and Benefits
- Precision ac and dc performance
- 8-/4-channel simultaneous sampling
- 256 kSPS maximum ADC output data rate per channel
- 108 dB dynamic range
- 110.8 kHz maximum input bandwidth (−3 dB bandwidth)
- −120 dB total harmonic distortion (THD) typical
- ±2 ppm of full-scale range (FSR) integral nonlinearity (INL), ±50 µV offset error, ±30 ppm gain error
- Optimized power dissipation vs. noise vs. input bandwidth
- Selectable power, speed, and input bandwidth (BW) modes
- \- Fast: highest speed; 110.8 kHz BW, 51.5 mW per channel
- \- Median: half speed, 55.4 kHz BW, 27.5 mW per channel
- \- Eco: lowest power, 13.8 kHz BW, 9.375 mW per channel
- Input BW range: dc to 110.8 kHz
- Programmable input bandwidth/sampling rates
- See data sheet for additional features
AD7768BSTZ Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 64 Pin |
| Case/Package | LQFP-64 |
| Supply Voltage (DC) | 2.25V (min) |
| Number of Positions | 64 Position |
| Number of Bits | 24 Bit |
| Power Dissipation | 638 mW |
| Sample Rate | 256 ksps |
| Number of ADCs | 8 ADC |
| Number of Inputs | 8 Input |
| Operating Temperature (Max) | 105 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Power Dissipation (Max) | 704 mW |
| Number of Input Channels | 8 Channel |
| Supply Voltage (Max) | 5 V |
| Supply Voltage (Min) | 2.25 V |
| Show | |
| Operating Temperature | -40℃ ~ 105℃ |
| Product Lifecycle Status | Active |
| Packaging | Each |
| RoHS | RoHS Compliant |
| Lead-Free Status | Contains Lead |
| REACH SVHC Compliance Edition | 2016/06/20 |
Order guide
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- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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