My Inquiry
My Account
Analog Devices Inc. AD9218BSTZ-RL40
- Part No.:
- AD9218BSTZ-RL40
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
AD9218BSTZ-RL40.pdf
- Description:
- IC ADC 10BIT PIPELINED 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,997
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD9218BSTZ-RL40 from Analog Devices is a dual 10-bit, 40 MSPS analog-to-digital converter with on-chip track-and-hold and internal reference, operating from a single 3.0 V supply (2.7–3.6 V), delivering 57 dB SNR at 41 MHz input with 300 MHz analog bandwidth per channel, and supporting 1 Vp-p or 2 Vp-p differential analog input range - used in hand-held scopemeters and low-cost digital oscilloscopes.
For engineers reviewing the AD9218BSTZ-RL40 datasheet, AD9218BSTZ-RL40 pinout, AD9218BSTZ-RL40 application, or AD9218BSTZ-RL40 equivalent, key selection considerations include dual-channel sampling rate (40 MSPS), industrial temperature range (−40°C to +85°C), LQFP-48 package compatibility, and support for offset binary/twos complement output formats with data alignment control.
Technical Context
The AD9218BSTZ-RL40 implements a bit-per-stage pipeline ADC architecture with switch-capacitor techniques, generating 7 MSBs per stage and feeding a 3-bit flash sub-ADC. Each channel operates independently with five-cycle pipeline latency and identical dynamic performance.
It features fully differential analog inputs with self-biasing to VD/3, TTL/CMOS-compatible encode inputs, and separate VDD (digital) and VD (analog) supplies enabling 2.5–3.6 V logic interfacing. User-selectable S1/S2 pins configure power-down modes and data alignment timing between channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - defines quantization step size of 1/1024 full-scale range, enabling precise digitization of medium-speed analog signals. |
| Sampling Rate | 40 MSPS - maximum sustained conversion rate per channel, supporting Nyquist-limited signal capture up to 20 MHz. |
| SNR @ 41 MHz | 57 dB - measured signal-to-noise ratio at 41 MHz input frequency and 80 MSPS encode, indicating usable dynamic range for IF sampling. |
| Analog Bandwidth | 300 MHz - −3 dB small-signal analog input frequency response, enabling direct sampling of IF signals without external amplification. |
| Power Dissipation | 325–350 mW (DC) - total quiescent power at 40 MSPS, enabling thermal management in compact battery-powered instruments. |
| Input Range | 1 Vp-p or 2 Vp-p differential - selectable via DFS/GAIN pin configuration, allowing optimization for noise floor or headroom in front-end design. |
| Supply Voltage | 2.7–3.6 V (VD, VDD) - single-supply operation with ±0.3 V tolerance, simplifying power delivery in portable systems. |
Pinout & Package
AD9218BSTZ-RL40 is housed in a 48-lead LQFP (7 mm × 7 mm), rated for industrial temperature range (−40°C to +85°C). Pin functions are validated per Analog Devices Rev. D datasheet Figure 5 and Table 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINA / AINA | Differential analog input, Channel A | High-impedance (10 kΩ), 3 pF input capacitance; self-biased to VD/3; supports 1 Vp-p or 2 Vp-p full-scale swing. |
| AINB / AINB | Differential analog input, Channel B | Electrically identical to AINA pair; crosstalk < −75 dBc ensures independent channel fidelity in I/Q applications. |
| ENCA / ENCB | Encode clock inputs | TTL/CMOS-compatible; supports independent or phase-aligned clocks; aperture jitter = 3 ps rms limits timing uncertainty. |
| D0A–D9A / D0B–D9B | Parallel digital outputs | TTL/CMOS-level; output swing referenced to VDD (2.5–3.6 V); high-impedance in power-down mode. |
| DFS/GAIN | Data format & gain select | Configures output coding (offset binary/twos complement) and input range (1 Vp-p/2 Vp-p) - no external resistor required. |
| S1 / S2 | User-select control | Set power-down (both or Channel B only) or enable data alignment - eliminates need for external logic in dual-clock I/Q systems. |
| REFOUT | Internal reference output | 1.24 V typical (1.18–1.28 V), 40 ppm/°C drift; drives REFINA/REFINB directly for simplified layout and stable full-scale calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Pipeline ADC architecture | Five-cycle latency with built-in error correction ensures monotonicity and guaranteed no-missing-codes across industrial temperature range. |
| On-chip track-and-hold + reference | Eliminates need for external THA or precision voltage reference, reducing BOM count and PCB area in space-constrained instruments. |
| Independent channel operation | Each channel has dedicated encode input and output bus, enabling asynchronous sampling or synchronized I/Q acquisition without interleaving artifacts. |
| Low crosstalk (−75 dBc) | Minimizes inter-channel interference in simultaneous sampling applications such as ultrasound beamforming or dual-channel oscilloscope front-ends. |
| Power-down mode | Reduces current to 20–22 mA per channel; digital outputs enter high-impedance state - ideal for duty-cycled battery-powered measurement systems. |
Applications
| Hand-Held Scopemeters | Low-Cost Digital Oscilloscopes |
|---|---|
|
Use Scenario: Portable field test equipment capturing transient waveforms with real-time display and storage. IC Role / Device Role / Timing Role: Dual-channel ADC digitizing differential probe inputs at 40 MSPS, providing time-aligned I/Q samples for FFT-based spectral analysis. Use Value: 300 MHz analog bandwidth enables accurate reconstruction of fast edges; 10-bit resolution supports >30 dB dynamic range for mixed-signal debugging. |
Use Scenario: Entry-level benchtop oscilloscopes requiring two synchronized analog channels under $1,000 BOM cost. IC Role / Device Role / Timing Role: Primary digitizer for both vertical channels, using shared REFOUT and independent ENCA/ENCB for skew-free acquisition. Use Value: Pin compatibility with AD9288 allows reuse of legacy layout; 57 dB SNR at 41 MHz supports clean 5–10 MHz signal visualization. |
| I/Q Communications Receivers | Ultrasound Equipment |
|
Use Scenario: Direct IF sampling in cable/satellite modem receivers, replacing analog mixers and filters. IC Role / Device Role / Timing Role: Simultaneous digitization of in-phase (I) and quadrature (Q) baseband signals with matched gain/phase response. Use Value: −75 dBc crosstalk preserves I/Q orthogonality; data alignment mode (S1=1,S2=1) synchronizes outputs to single clock edge for FPGA processing. |
Use Scenario: Beamformed echo signal acquisition in portable ultrasound systems with multi-element transducer arrays. IC Role / Device Role / Timing Role: High-fidelity digitization of low-noise, wideband RF echoes from piezoelectric transducers. Use Value: 10-bit resolution captures subtle tissue contrast; 300 MHz bandwidth supports harmonic imaging up to 15 MHz center frequency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9288BSTZ-100 | 8-bit resolution, 100 MSPS max, same LQFP-48 package and pinout; lacks internal reference and track-and-hold. | Lower dynamic range (48 dB SNR) but higher speed; requires external reference and driver circuitry. | Select when system prioritizes sampling speed over resolution and can accommodate external support components. |
| ADS5272IPFP | 12-bit, 65 MSPS dual ADC in HTQFP-80; includes JESD204B serial interface, no parallel TTL/CMOS outputs. | Higher resolution and integrated digital interface reduce FPGA pin count but require serializer-deserializer implementation. | Select when migrating to high-speed serial data transport and higher ENOB (>10 bits) is critical for medical or test equipment. |
Compared with AD9218BSTZ-RL40, AD9288BSTZ-100 trades resolution for speed and adds design complexity via external reference, while ADS5272IPFP shifts architecture toward serial data flow and increases package size - neither offers drop-in replacement capability due to resolution, interface, or pinout differences.
Availability
AD9218BSTZ-RL40 is available at Aetrix Electronics and suitable for hand-held scopemeters, low-cost digital oscilloscopes, and I/Q communications receivers requiring stable component supply, long-term lifecycle assurance, and industrial-grade reliability.
Supply support for AD9218BSTZ-RL40 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The AD9218BSTZ-RL40 belongs to Analog Devices' high-speed data converter product line, designed specifically for cost-sensitive, space-constrained instrumentation and communications systems requiring dual-channel synchronization and low-power operation.
FAQ
What is the maximum sampling rate supported by the AD9218BSTZ-RL40?
The AD9218BSTZ-RL40 is rated for a maximum sampling rate of 40 MSPS per channel. This is confirmed in the "Switching Specifications" table (Table 4) of the Rev. D datasheet, where "Maximum Encode Rate" for the -40 grade is specified as 40 MSPS. Operation above this rate is not guaranteed and may result in degraded AC performance or missing codes.
Does the AD9218BSTZ-RL40 include an internal voltage reference?
Yes, the AD9218BSTZ-RL40 integrates an internal 1.24 V nominal reference (REFOUT, Pin 6), with a tolerance of ±0.05 V and temperature drift of 40 ppm/°C. It can directly drive REFINA and REFINB pins, eliminating the need for an external reference in most applications - a key feature highlighted in the General Description and Product Highlights sections.
Can the AD9218BSTZ-RL40 operate with a 2.5 V digital supply?
Yes, the AD9218BSTZ-RL40 supports VDD (digital supply) from 2.5 V to 3.6 V, as stated in the "Digital Specifications" section (Table 2) and "Power Supply" DC specs (Table 1). Its TTL/CMOS-compatible digital outputs function correctly at 2.5 V, enabling direct interfacing with 2.5 V FPGAs or ASICs without level-shifting circuitry.
How is channel synchronization managed in the AD9218BSTZ-RL40?
Channel synchronization in the AD9218BSTZ-RL40 is controlled via the S1 and S2 pins. When S1=1 and S2=1, the device enables "data alignment mode", delaying Channel B output by ½ clock cycle so both channels' data appear aligned to the rising edge of Clock A - essential for coherent I/Q sampling without FPGA-based deskew logic.
Is the AD9218BSTZ-RL40 pin-compatible with other members of the AD9218 family?
Yes, all AD9218 variants - including AD9218BSTZ-40, -65, -80, and -105 - share identical 48-lead LQFP packaging and pinout. The AD9218BSTZ-RL40 is therefore mechanically and electrically interchangeable with other speed grades, allowing design reuse across performance tiers without PCB revision.
AD9218BSTZ-RL40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 40M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- 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:
- -
AD9218BSTZ-RL40 FAQ
1.How can I place an order for AD9218BSTZ-RL40 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9218BSTZ-RL40 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 AD9218BSTZ-RL40 reliable?
The price and inventory of AD9218BSTZ-RL40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9218BSTZ-RL40 is usually 5 days.
3.What payment methods are accepted for AD9218BSTZ-RL40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9218BSTZ-RL40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9218BSTZ-RL40?
AD9218BSTZ-RL40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9218BSTZ-RL40 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 AD9218BSTZ-RL40?
For technical support, including AD9218BSTZ-RL40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9218BSTZ-RL40 requirements.
6.How does Aetrix verify that AD9218BSTZ-RL40 is sourced from the original manufacturer or authorized distributors?
All AD9218BSTZ-RL40 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 AD9218BSTZ-RL40 meets industry standards.
7.What is the process for return or replacement of AD9218BSTZ-RL40?
All AD9218BSTZ-RL40 units undergo pre-shipment inspection (PSI). If there is an issue with AD9218BSTZ-RL40, 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 AD9218BSTZ-RL40 part is unused and in its original packaging.
Return procedure for AD9218BSTZ-RL40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD9218BSTZ-RL40 Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
