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Analog Devices Inc. AD9288BSTZ-100
- Part No.:
- AD9288BSTZ-100
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
AD9288BSTZ-100.pdf
- Description:
- IC ADC 8BIT PIPELINED 48LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
AD9288BSTZ-100 from Analog Devices is a dual 8-bit, 100 MSPS analog-to-digital converter with on-chip track-and-hold, internal 1.25 V reference, and independent channel operation. It delivers 47 dB SNR at 41 MHz input, supports 1 Vp-p differential analog input range, and operates from a single 3.0 V supply (2.7–3.6 V). It is used in low-cost digital oscilloscopes and I/Q communications receivers requiring compact, low-power dual-channel sampling.
For engineers reviewing the AD9288BSTZ-100 datasheet, AD9288BSTZ-100 pinout, AD9288BSTZ-100 application, or AD9288BSTZ-100 equivalent, key selection considerations include its 100 MSPS dual-channel throughput, 475 MHz analog bandwidth per channel, standby mode for single-channel power reduction, TTL/CMOS-compatible digital outputs, and user-selectable twos complement or offset binary data format.
Technical Context
The AD9288BSTZ-100 implements a bit-per-stage pipeline ADC architecture with switch-capacitor techniques, delivering 5 MSBs per stage followed by a 3-bit flash sub-converter. Each channel features fully differential analog input buffers biased internally for flexible ac/dc and single-ended/differential operation.
It uses latched digital outputs with four-pipeline-stage latency, output valid time of 2–3 ns, and propagation delay of 4.5–6.0 ns. User-selectable S1/S2 pins configure standby modes (both or Channel B only) and data alignment-enabling synchronized output delivery across channels even with 180° phase-shifted clocks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - fixed resolution with guaranteed no missing codes over industrial temperature range. |
| Max Conversion Rate | 100 MSPS - full dynamic performance (47 dB SNR) sustained at maximum sample rate per channel. |
| Analog Bandwidth | 475 MHz - supports high-frequency signal capture up to Nyquist (50 MHz) with minimal roll-off. |
| SNR @ 41 MHz | 44 dB - measured signal-to-noise ratio at near-Nyquist input frequency under –0.7 dBFS condition. |
| Power Dissipation | 180–218 mW - total device power at 100 MSPS with both channels active; 6–11 mW in standby mode. |
| Input Voltage Range | 1.024 Vp-p differential - nominal full-scale range centered at 0.3 × VD (0.9 V typical with 3.0 V supply). |
| Reference Voltage | 1.25 V internal - factory-trimmed on-chip reference with ±130 ppm/°C tempco; externally adjustable ±5%. |
Pinout & Package
AD9288BSTZ-100 is housed in a 48-lead LQFP package (7 mm × 7 mm, 1.4 mm height), RoHS-compliant, rated for –40°C to +85°C industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1,12,16,27,29,32,34,45) | Ground reference | Eight dedicated analog/digital ground connections ensure low-noise return paths and minimize crosstalk between channels. |
| VD (Pins 13,30,31,48) | Analog supply | 3.0 V analog power rail (2.7–3.6 V); decoupling required per pin for high-frequency stability. |
| VDD (Pins 15,28,33,46) | Digital supply | 3.0 V digital power rail (2.5–3.6 V); separate from VD to isolate logic noise from analog section. |
| AINA / AINA (Pins 2,3) | Channel A analog input | Differential pair accepting 1 Vp-p signal; internally biased to 0.3 × VD; supports ac- or dc-coupled inputs. |
| AINB / AINB (Pins 10,11) | Channel B analog input | Independent differential input identical in specification and biasing to Channel A. |
| ENCA / ENCB (Pins 47,14) | Encode clock inputs | TTL/CMOS-compatible clock inputs; support independent or common-clock operation with configurable skew. |
| D0A–D7A (Pins 37–44) | Channel A digital output | 8-bit parallel TTL/CMOS outputs; MSB-first order; output voltage swing referenced to VDD. |
| D0B–D7B (Pins 17–24) | Channel B digital output | 8-bit parallel outputs aligned or skewed relative to Channel A based on S1/S2 configuration. |
| REFINA / REFINB (Pins 5,7) | Reference input | Accept external reference; tied to REFOUT (Pin 6) for internal 1.25 V operation. |
| DFS (Pin 4) | Data format select | Logic high = twos complement; logic low = offset binary - determines MSB polarity interpretation. |
| S1 / S2 (Pins 8,9) | User-select mode control | Configure standby (both/B-only) or data alignment (synchronized output timing across channels). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit ADCs | Enables simultaneous sampling of two signals (e.g., I/Q baseband) without interleaving artifacts or timing skew. |
| On-chip 1.25 V reference with ±5% adjustability | Eliminates need for external reference IC in most applications; full-scale range tracks reference linearly. |
| 475 MHz analog input bandwidth per channel | Supports direct RF sampling up to ~237 MHz (Nyquist-limited), reducing front-end filtering complexity. |
| Standby mode with high-impedance outputs | Reduces power to ≤11 mW while preserving configuration state; enables rapid wake-up (<15 clock cycles). |
| User-selectable data alignment (S1/S2) | Allows precise synchronization of Channel B output to Channel A's rising clock edge-even with asynchronous clocks. |
| Pin-compatible upgrade path to AD9218 | Facilitates system scalability: same footprint supports 10-bit AD9218 without PCB redesign. |
Applications
| I/Q Communications Receiver | Low-Cost Digital Oscilloscope |
|---|---|
Use Scenario: Simultaneous digitization of in-phase (I) and quadrature (Q) baseband signals in SDR transceivers or LTE femtocells. IC Role / Device Role / Timing Role: Dual-channel ADC capturing I and Q components at 100 MSPS with matched gain (±1.5% FS) and voltage (±15 mV) for coherent demodulation. Use Value: Maintains phase orthogonality and amplitude balance critical for EVM < 3% in 16-QAM systems; eliminates need for external calibration. |
Use Scenario: Real-time waveform acquisition in handheld scopemeters with ≤100 MHz analog bandwidth requirement. IC Role / Device Role / Timing Role: High-speed sampling engine providing 100 MSPS dual-channel capture with 47 dB SNR at 41 MHz for accurate time-domain reconstruction. Use Value: Enables 50 MHz real-time bandwidth (2× oversampling) and 8-bit vertical resolution suitable for debugging mixed-signal embedded systems. |
| Battery-Powered Test Instrument | Hand-Held Scopemeter |
Use Scenario: Portable spectrum analyzer front-end where low power and small size are critical for >4-hour battery life. IC Role / Device Role / Timing Role: Low-power dual ADC consuming only 180–218 mW at full rate; standby mode reduces consumption to 6–11 mW when idle. Use Value: Extends operational runtime without compromising 100 MSPS sampling capability or 475 MHz analog bandwidth. |
Use Scenario: Compact field-deployable measurement tool requiring rugged, low-heat design with integrated analog front-end. IC Role / Device Role / Timing Role: Dual-channel sampling core with on-chip track-and-hold and reference, eliminating external support components. Use Value: Reduces BOM count by ≥4 parts (ref IC, TH buffer, decoupling network) and board area by >15 mm² vs. discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9288BST-80 | Same architecture and pinout; rated for 80 MSPS max conversion rate; lower power (171–207 mW) and slightly improved SNR at lower frequencies. | Preferred for cost-sensitive designs targeting ≤80 MSPS with relaxed Nyquist bandwidth (≤40 MHz). | Select AD9288BST-80 if system clock is fixed at ≤80 MSPS and thermal/power budget is tighter. |
| AD9218BSTZ-100 | 10-bit resolution, identical 48-lead LQFP package and pinout; higher SNR (63 dB @ 10 MHz); higher power (350 mW); requires external reference. | Suitable for applications needing higher dynamic range (e.g., medical ultrasound digitization) where resolution outweighs power constraints. | Choose AD9218BSTZ-100 when 10-bit precision is mandatory and PCB layout allows added reference circuitry. |
Compared with AD9288BST-80, the AD9288BSTZ-100 delivers 20 MSPS higher throughput and maintains full 47 dB SNR at 41 MHz, while AD9218BSTZ-100 trades 2-bit resolution and 170 mW extra power for 16 dB SNR improvement - making each choice optimal for distinct trade-offs between speed, resolution, and power.
Availability
AD9288BSTZ-100 is available at Aetrix Electronics and suitable for battery-powered instruments, low-cost digital oscilloscopes, and I/Q communications receivers requiring stable component supply and long-term industrial temperature support.
Supply support for AD9288BSTZ-100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD9288 belongs to Analog Devices' high-speed data converter product line, designed specifically for cost-sensitive, space-constrained applications requiring dual-channel sampling with integrated reference and low power consumption.
FAQ
What is the maximum analog input frequency supported by the AD9288BSTZ-100?
The AD9288BSTZ-100 has a specified analog bandwidth of 475 MHz per channel, meaning it can accurately capture signals with frequency content up to that point. However, for alias-free sampling, the maximum fundamental input frequency is limited by the Nyquist criterion to half the sampling rate - i.e., 50 MHz at 100 MSPS. Performance metrics like SNR and SINAD are validated up to 41 MHz input.
Does the AD9288BSTZ-100 require an external reference voltage?
No, the AD9288BSTZ-100 includes a factory-trimmed 1.25 V internal reference (REFOUT) and is configured for internal reference operation by default - REFINA and REFINB are tied to REFOUT (Pin 6). An external reference may be applied if greater accuracy or adjustability beyond ±5% is needed, but it is not required for standard operation.
How does the data alignment feature (S1/S2) affect timing between Channel A and Channel B outputs?
When S1 = S2 = 1, the AD9288BSTZ-100 enables data alignment mode: Channel B output data is delayed by ½ clock cycle so both channels deliver aligned samples on the rising edge of Clock A - even if Clock B is 180° out of phase. This ensures deterministic inter-channel timing for coherent I/Q processing without FPGA-level deskew logic.
Can the AD9288BSTZ-100 operate from a 2.5 V digital supply?
Yes - the AD9288BSTZ-100 supports VDD from 2.5 V to 3.6 V, and its digital outputs remain TTL/CMOS-compatible across this range. The datasheet specifies Logic 1 Output Voltage ≥2.45 V and Logic 0 ≤0.05 V at VDD = 3.0 V; at 2.5 V, output swing scales accordingly and remains compatible with 2.5 V logic families when properly terminated.
Is the AD9288BSTZ-100 pin-compatible with any higher-resolution alternatives?
Yes - the AD9288BSTZ-100 is explicitly pin-compatible with the 10-bit AD9218BSTZ-100. Both use the same 48-lead LQFP package, identical pin functions, and share layout-compatible footprints, enabling straightforward resolution upgrades without PCB revision - provided the system can accommodate AD9218's higher power (350 mW) and external reference requirement.
AD9288BSTZ-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 100M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9288BSTZ-100 FAQ
1.How can I place an order for AD9288BSTZ-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9288BSTZ-100 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD9288BSTZ-100 reliable?
The price and inventory of AD9288BSTZ-100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9288BSTZ-100 is usually 5 days.
3.What payment methods are accepted for AD9288BSTZ-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9288BSTZ-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9288BSTZ-100?
AD9288BSTZ-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9288BSTZ-100 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD9288BSTZ-100?
For technical support, including AD9288BSTZ-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9288BSTZ-100 requirements.
6.How does Aetrix verify that AD9288BSTZ-100 is sourced from the original manufacturer or authorized distributors?
All AD9288BSTZ-100 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD9288BSTZ-100 meets industry standards.
7.What is the process for return or replacement of AD9288BSTZ-100?
All AD9288BSTZ-100 units undergo pre-shipment inspection (PSI). If there is an issue with AD9288BSTZ-100, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD9288BSTZ-100 part is unused and in its original packaging.
Return procedure for AD9288BSTZ-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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