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Texas Instruments ADS2806Y/1K5
- Part No.:
- ADS2806Y/1K5
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-PowerTQFP
- Datasheet:
-
ADS2806Y/1K5.pdf
- Description:
- IC ADC 12BIT PIPELINED 64HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,635
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Product details
Overview
ADS2806Y/1K5 from Texas Instruments is a dual, 12-bit, 32 MSPS pipelined analog-to-digital converter (ADC) with differential track-and-hold, internal/external reference support, ±0.4 LSB DLE, and TQFP-64 package. It delivers 73 dB SFDR at 10 MHz fIN, 69 dB SNR at 3 Vp-p, and operates across –40°C to +85°C for communications IF processing and medical imaging systems.
For engineers reviewing the ADS2806Y/1K5 datasheet, ADS2806Y/1K5 pinout, ADS2806Y/1K5 application, or ADS2806Y/1K5 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative options, and supply-ready availability details - all grounded in TI's SBAS178B production data sheet.
Technical Context
The ADS2806Y/1K5 implements a 11-stage pipelined ADC architecture with on-chip digital error correction logic, ensuring no missing codes and ±0.4 LSB differential linearity at 32 MSPS. Its fully differential track-and-hold accepts 2 Vp-p or 3 Vp-p input ranges and supports both single-ended and differential analog drive modes.
It features independent channel A/B data valid (DVA/DVB) and over-range (OVRA/OVRB) flags, CMOS-compatible 3-state digital outputs with selectable VDRV (3 V or 5 V), and dual reference control via INT/EXT and SEL pins - enabling flexible full-scale scaling and multichannel reference tracking in baseband and IF sampling systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees 4096 distinct output codes for high-fidelity digitization of wideband signals. |
| Max Sample Rate | 32 MSPS - supports Nyquist-sampled IF signals up to 16 MHz or undersampled RF bands. |
| SFDR @ 10 MHz fIN | 73 dBFS - enables clean spectral separation of adjacent channels in 3G/4G base station receivers. |
| SNR @ 3 Vp-p, 10 MHz | 68 dBFS - delivers >11 effective bits for low-noise medical ultrasound or CCD imaging digitization. |
| Differential Linearity Error | ±0.4 LSB - ensures monotonicity and minimal code-dependent gain error in precision timing-critical applications. |
| Analog Input Bandwidth | 270 MHz - allows direct sampling of L-band RF signals without external pre-filtering in test equipment front ends. |
| Data Latency | 6 clock cycles - enables deterministic timing alignment for real-time digital downconversion pipelines. |
Pinout & Package
TQFP-64 power package with exposed thermal pad; 1 mm pitch, 10 mm × 10 mm body, JEDEC MO-220 standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA / INA | Differential analog input, Channel A | Accepts balanced signal pair; common-mode bias via CMA or external source required for proper operation. |
| INB / INB | Differential analog input, Channel B | Independent second channel; identical topology and performance to Channel A for synchronous dual-channel acquisition. |
| CLK | Input clock | Rising-edge triggered; minimum pulse width 14.6 ns; controls sample timing and pipeline progression. |
| OEA / OEB | Output enable, Channels A/B | Active-low CMOS control; enables/disables respective 12-bit parallel output buses for multiplexed bus sharing. |
| OVRA / OVRB | Over-range flag, Channels A/B | Open-drain or CMOS output; asserts when input exceeds selected full-scale range, enabling automatic gain control feedback. |
| A1–A12 / B1–B12 | Parallel digital outputs | MSB-first straight offset binary; 3-state, VDRV-referenced; supports 3 V or 5 V logic interfacing. |
| INT/EXT | Reference selection | LOW = internal 50 kΩ pull-up enables internal reference; HIGH = external reference mode with REFT/REFB inputs active. |
| SEL | Full-scale range select | HIGH = 3 Vp-p range (REFT–REFB = 1.25 V); LOW = 2 Vp-p range (REFT–REFB = 1.0 V). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 12-bit ADC cores | Enables simultaneous sampling of two analog signals (e.g., I/Q demodulation) without inter-channel skew or crosstalk degradation (80 dBc typical). |
| Programmable 2 Vp-p/3 Vp-p full-scale range | Allows dynamic matching to signal chain headroom - e.g., 2 Vp-p for low-voltage op amp drivers, 3 Vp-p for maximum SNR in high-fidelity imaging. |
| Internal reference with external disable | Eliminates need for external reference IC in single-channel designs; enables precision external reference sharing across multiple ADS2806Y/1K5 devices in multichannel systems. |
| 6-cycle deterministic latency | Supports tight-loop digital signal processing (e.g., adaptive filtering or real-time FFT) with predictable timing margins and simplified synchronization logic. |
| CMOS 3-state outputs with dual VDRV | Permits direct interface to either 3 V or 5 V FPGA/CPLD I/O banks without level shifters - reducing BOM count and layout complexity. |
Applications
| Communications IF Processing | Medical Ultrasound Imaging |
|---|---|
Use Scenario: Digitizing quadrature IF signals (e.g., 70 MHz or 140 MHz) in software-defined radio receivers before digital downconversion. IC Role / Device Role / Timing Role: Dual-channel ADC captures synchronized I and Q paths with matched gain/phase; 32 MSPS rate supports 16 MHz instantaneous bandwidth. Use Value: 73 dB SFDR prevents adjacent-channel interference masking weak signals; low DLE preserves amplitude fidelity for accurate envelope detection. |
Use Scenario: Converting echo return signals from phased-array transducers in real-time B-mode ultrasound systems. IC Role / Device Role / Timing Role: High-SNR digitization of low-amplitude, wideband RF echoes (1–15 MHz); dual-channel operation supports parallel beamforming channels. Use Value: 69 dB SNR at 3 Vp-p improves contrast resolution; 270 MHz analog bandwidth preserves harmonic content critical for tissue characterization. |
| Test Equipment Signal Acquisition | CCD Image Sensor Digitization |
Use Scenario: High-speed waveform capture in automated test equipment (ATE) for RF component validation (e.g., PA linearity, filter group delay). IC Role / Device Role / Timing Role: Precision digitizer front end with deterministic 6-cycle latency; over-range flags trigger automatic input attenuation adjustment. Use Value: ±0.4 LSB DLE ensures accurate amplitude measurement across full code range; 80 dBc channel isolation prevents cross-talk between stimulus/response paths. |
Use Scenario: Reading out high-resolution linear or area CCD sensors in industrial inspection or scientific cameras. IC Role / Device Role / Timing Role: Low-noise, low-distortion digitization of pixel charge integrators; dual-channel mode supports time-multiplexed sensor readout or stereo imaging. Use Value: 0.2 LSBrms output noise minimizes quantization uncertainty in low-light conditions; flexible 2–3 Vp-p range matches CCD output swing without gain stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, 12-bit, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS2807Y/1K5 | Same pinout, 10-bit resolution, 50 MSPS max, lower power (320 mW), reduced SFDR (68 dBFS @ 10 MHz) | Better suited for cost-sensitive, higher-speed but lower-dynamic-range applications like basic spectrum analyzers | Select when system SNR/SFDR requirements are ≤68 dB and sampling rate >32 MSPS is needed. |
| AD9236BCPZ-80 | Single-channel, 12-bit, 80 MSPS, 72 dB SFDR @ 10 MHz, different pinout (LFCSP-48), requires external reference | Used where board space is constrained and only one high-speed channel is required per device | Choose for compact, single-channel designs needing >32 MSPS; not drop-in compatible due to pin count and package mismatch. |
Compared with ADS2806Y/1K5, ADS2807Y/1K5 trades resolution for speed and power efficiency, while AD9236BCPZ-80 offers higher sample rate in a smaller package but lacks dual-channel integration - making ADS2806Y/1K5 optimal for space-tolerant, dual-synchronous, medium-speed precision digitization.
Availability
ADS2806Y/1K5 is available at Aetrix Electronics and suitable for communications base stations, medical ultrasound systems, and automated test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS2806Y/1K5 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance data converters for industrial, automotive, and communications markets.
The ADS2806Y/1K5 belongs to TI's high-speed precision ADC product line, engineered for demanding IF sampling, medical imaging, and instrumentation applications where dynamic range, channel matching, and deterministic latency are critical.
FAQ
What is the operating temperature range for the ADS2806Y/1K5?
The ADS2806Y/1K5 is specified for operation from –40°C to +85°C ambient air temperature, meeting industrial-grade reliability requirements. This range is validated per TI's SBAS178B production data sheet and applies to all electrical specifications including SFDR, SNR, and DLE performance across the full 32 MSPS sample rate.
Does the ADS2806Y/1K5 support both internal and external voltage references?
Yes, the ADS2806Y/1K5 supports both internal and external references via the INT/EXT pin. When INT/EXT = LOW, the internal reference is enabled with 50 kΩ pull-up; when HIGH, external reference voltages applied to REFTA/REFBA and REFTB/REFBB pins take precedence - allowing precise multichannel tracking in synchronized systems.
What is the function of the SEL pin on the ADS2806Y/1K5?
The SEL pin on the ADS2806Y/1K5 selects the full-scale input range: LOW configures 2 Vp-p (using internal REFT = 3.0 V and REFB = 2.0 V), while HIGH configures 3 Vp-p (REFT = 3.25 V, REFB = 1.75 V). This enables dynamic adaptation to varying signal amplitudes without hardware changes.
How many clock cycles of latency does the ADS2806Y/1K5 exhibit?
The ADS2806Y/1K5 exhibits a fixed data latency of 6 clock cycles from CLK rising edge to valid output data - a deterministic value confirmed in TI's SBAS178B timing diagram and essential for synchronizing downstream DSP logic or FIFO buffering in real-time systems.
Is the ADS2806Y/1K5 pin-compatible with other devices in the ADS28xx family?
The ADS2806Y/1K5 shares the same TQFP-64 package and core pinout with ADS2807Y/1K5, including identical CLK, OEA/OEB, OVRA/OVRB, and reference pin assignments. However, ADS2807Y/1K5 differs in resolution (10-bit), power consumption, and SFDR - requiring firmware and layout verification despite mechanical compatibility.
ADS2806Y/1K5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-PowerTQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 32M
- 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:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 3V ~ 5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-HTQFP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS2806Y/1K5 FAQ
1.How can I place an order for ADS2806Y/1K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS2806Y/1K5 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 ADS2806Y/1K5 reliable?
The price and inventory of ADS2806Y/1K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS2806Y/1K5 is usually 5 days.
3.What payment methods are accepted for ADS2806Y/1K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS2806Y/1K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS2806Y/1K5?
ADS2806Y/1K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS2806Y/1K5 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 ADS2806Y/1K5?
For technical support, including ADS2806Y/1K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS2806Y/1K5 requirements.
6.How does Aetrix verify that ADS2806Y/1K5 is sourced from the original manufacturer or authorized distributors?
All ADS2806Y/1K5 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 ADS2806Y/1K5 meets industry standards.
7.What is the process for return or replacement of ADS2806Y/1K5?
All ADS2806Y/1K5 units undergo pre-shipment inspection (PSI). If there is an issue with ADS2806Y/1K5, 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 ADS2806Y/1K5 part is unused and in its original packaging.
Return procedure for ADS2806Y/1K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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