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Texas Instruments ADS8507IBDWR
- Part No.:
- ADS8507IBDWR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADS8507IBDWR.pdf
- Description:
- IC ADC 16BIT SAR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,315
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Product details
Overview
ADS8507IBDWR from Texas Instruments is a 16-bit, 40-kSPS successive approximation register (SAR) analog-to-digital converter with integrated 2.5-V reference, parallel/serial interface, ±10-V input range support, and industrial-grade operation from –40°C to +85°C. It delivers 89.9-dB SINAD at 10 kHz, ±1.5 LSB max INL, and 24 mW typical power dissipation at full throughput-used in precision data acquisition for industrial process control and test equipment.
For engineers reviewing the ADS8507IBDWR datasheet, ADS8507IBDWR pinout, ADS8507IBDWR application, or ADS8507IBDWR equivalent, key selection considerations include its dual-interface flexibility (parallel BYTE-selectable 16-bit output + SPI-compatible serial daisy-chain), bipolar/unipolar input range configurability, internal/external reference option, and SO-28 package compatibility with ADS7807/ADS7806.
Technical Context
The ADS8507IBDWR implements a capacitor-based SAR architecture with integrated sample-and-hold, clock generator, and reference buffer. It supports configurable input ranges (±10 V, 0–4 V, 0–5 V) via external resistor networks and allows output coding in either binary 2's complement or straight binary format via SB/BTC pin control.
Its dual-clocking mode-internal DATACLK generation (EXT/INT = low) or external synchronization (EXT/INT = high)-enables deterministic timing in both serial daisy-chain and parallel readout configurations. The device maintains specified accuracy during overvoltage transients up to ±25 V on R1IN/R2IN without damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit-supports 65,536 discrete digital codes for high-fidelity signal digitization. |
| Sampling Rate | 40 kSPS-enables real-time capture of signals up to ~130 kHz usable bandwidth (60 dB SINAD). |
| SINAD | 89.9 dB at 10 kHz-ensures >14.9 effective number of bits (ENOB) for precision measurement systems. |
| INL | ±1.5 LSB max-guarantees monotonicity and linearity critical for closed-loop control and calibration-sensitive applications. |
| Power Dissipation | 24 mW typ at 40 kSPS-enables low-thermal-load designs in space-constrained industrial modules. |
| Reference | Internal 2.5 V ±0.2% (2.48–2.52 V), 8 ppm/°C drift-reduces BOM count while maintaining stable scaling across temperature. |
| Input Range | Configurable ±10 V / 0–4 V / 0–5 V-supports direct connection to industrial sensors and instrumentation outputs without external gain stages. |
Pinout & Package
ADS8507IBDWR is housed in a 28-pin SOIC (SO-28, DW package) with exposed pad not present; thermal resistance ΘJA = 46°C/W. Pin functions are validated per TI SLAS381 datasheet Figure 32 and Terminal Functions table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| R1IN, R2IN | Analog inputs | Differential or single-ended analog signal entry points; tolerate ±25 V fault voltage without damage. |
| REF, CAP | Reference node & buffer output | REF outputs internal 2.5-V reference; CAP requires 2.2-µF tantalum bypass to AGND2 for stability. |
| SB/BTC, BYTE, EXT/INT | Interface configuration controls | Select output coding (2's complement vs. straight binary), byte order (MSB/LSB first), and clock source (internal vs. external). |
| D0–D7, DATACLK, SDATA | Digital I/O | Parallel 8-bit data bus (BYTE-selectable) + SPI-compatible serial interface with TAG daisy-chain capability. |
| CS, R/C, BUSY | Control & status | Chip select/read-convert strobe and conversion busy indicator enable precise timing coordination in microcontroller/FPGA systems. |
Key Features
| Feature | Design Value |
|---|---|
| Parallel + Serial Dual Interface | Enables system-level flexibility: high-speed parallel reads for latency-critical applications and compact serial daisy-chaining for multi-channel systems. |
| Configurable Input Ranges | Supports ±10 V, 0–4 V, and 0–5 V ranges via external resistors-eliminates need for external level-shifting or gain amplifiers in mixed-signal front-ends. |
| Internal Reference w/ Low Drift | 2.5 V ±0.2% initial accuracy and 8 ppm/°C drift ensures stable full-scale calibration across industrial temperature range without external reference IC. |
| Overvoltage Tolerance | Withstands ±25 V on analog inputs-protects against field-induced transients and wiring errors in factory-floor instrumentation. |
| Low-Power Power-Down Mode | 50 µW max standby consumption extends battery life in portable test equipment and enables rapid wake-up (<1 ms recovery) for burst-mode sampling. |
Applications
| Industrial Process Control | Automated Test Equipment |
|---|---|
Use Scenario: Monitoring pressure, temperature, and flow sensor outputs in PLC-based control cabinets with ±10 V analog field wiring. IC Role / Device Role / Timing Role: Precision ADC capturing slow-varying industrial signals at 40 kSPS with guaranteed linearity and robustness against EMI and ground shifts. Use Value: Eliminates external reference and gain stages while maintaining ±1.5 LSB INL-reducing component count and improving long-term calibration stability. | Use Scenario: Digitizing stimulus-response waveforms in benchtop multichannel ATE systems requiring synchronized sampling across multiple DUTs. IC Role / Device Role / Timing Role: High-fidelity SAR ADC providing 89.9-dB SINAD at 10 kHz and deterministic conversion timing via BUSY and R/C handshaking. Use Value: Enables accurate THD/SFDR measurements without post-processing correction-critical for compliance testing of audio and RF components. |
| Medical Data Acquisition | High-Accuracy Instrumentation |
Use Scenario: Converting biopotential signals (ECG, EEG) in portable diagnostic devices where size, power, and noise performance are constrained. IC Role / Device Role / Timing Role: Low-noise 16-bit ADC operating from single 5-V supply with internal reference and 24-mW active power-minimizing thermal drift and battery load. Use Value: Delivers 87–89.9 dB SINAD across 1–20 kHz band-meeting clinical-grade SNR requirements without external op-amp filtering. | Use Scenario: Digitizing calibrated sensor outputs in laboratory-grade multimeters and data loggers requiring traceable accuracy and minimal calibration overhead. IC Role / Device Role / Timing Role: Precision ADC with ±5 mV bipolar zero error and ±0.5 ppm/°C zero drift-supporting unattended 24/7 operation across ambient temperature swings. Use Value: Reduces annual recalibration frequency by maintaining <±10 µV offset drift over –40°C to +85°C-lowering total cost of ownership. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8505IPW | 16-bit, 250-kSPS, no internal reference, requires external 2.5-V ref; SO-28 package. | Higher speed but lacks integrated reference-requires additional ref IC and layout area. | Choose when sampling rate >40 kSPS is required and board space permits external reference design. |
| ADS8326IBDBT | 16-bit, 500-kSPS, internal reference, 32-pin VQFN; SPI-only interface, no parallel bus. | Higher throughput and smaller footprint, but no parallel interface-limits FPGA/microcontroller integration flexibility. | Choose for space-constrained, high-speed embedded systems where serial-only interface suffices and thermal management supports QFN package. |
Compared with ADS8505IPW and ADS8326IBDBT, the ADS8507IBDWR uniquely balances integrated reference, dual parallel/serial interface, industrial temperature rating, and proven ±10-V robustness-making it optimal for legacy-compatible, medium-speed, high-accuracy industrial DAQ upgrades.
Availability
ADS8507IBDWR is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, and medical data acquisition systems requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for ADS8507IBDWR 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 connectivity technologies with decades of precision data converter innovation.
The ADS8507 product line targets high-accuracy, medium-speed data acquisition in harsh industrial environments-designed to simplify system design through integrated reference, flexible interface, and overvoltage-hardened analog inputs.
FAQ
What input voltage ranges does the ADS8507IBDWR support?
The ADS8507IBDWR supports three configurable analog input ranges: ±10 V, 0–4 V, and 0–5 V. These are selected using external resistor networks per Table 1 in the SLAS381 datasheet. The device tolerates ±25 V on R1IN and R2IN without damage, making it suitable for industrial field wiring environments where transient overvoltages may occur. Each range maps to specific impedance values (e.g., 45.7 kΩ for ±10 V) to maintain linearity and accuracy.
Does the ADS8507IBDWR require an external reference voltage?
No-the ADS8507IBDWR includes an internal 2.5-V reference with ±0.2% initial accuracy (2.48–2.52 V) and 8 ppm/°C drift, fully characterized over –40°C to +85°C. REF and CAP pins must be bypassed with a 2.2-µF tantalum capacitor to AGND2. An external reference can be used by driving REF and asserting REFD = high to disable the internal source, supporting system-level reference sharing or higher-precision external references.
How does the parallel/serial interface of the ADS8507IBDWR operate?
The ADS8507IBDWR offers both parallel and serial interfaces simultaneously. Parallel output uses D0–D7 pins with BYTE pin selecting MSB (BYTE = low) or LSB (BYTE = high) bytes; CS and R/C coordinate read/convert timing. Serial output uses SDATA and DATACLK in SPI-compatible mode, supporting daisy-chain via TAG pin. EXT/INT pin selects internal clock generation (low) or external synchronization (high), enabling deterministic timing in either mode.
What is the power consumption profile of the ADS8507IBDWR?
The ADS8507IBDWR consumes 24 mW typical (30 mW max) at 40 kSPS with VANA = VDIG = 5 V and internal reference enabled. In power-down mode (PWRD = high), consumption drops to 50 µW max. Recovery time to rated accuracy after exiting power-down is 1 ms. This low-power profile supports battery-operated portable instrumentation and thermally constrained industrial modules without compromising AC performance (e.g., 89.9-dB SINAD maintained).
Is the ADS8507IBDWR pin-compatible with other TI ADCs?
Yes-the ADS8507IBDWR is explicitly pin-compatible with the ADS7807 (16-bit) and ADS7806/ADS8506 (12-bit) families in the same SO-28 (DW) package. This allows drop-in replacement in existing designs upgrading resolution or maintaining form-factor constraints. Signal routing, power, and ground connections remain identical; only firmware or configuration logic may require updates to accommodate 16-bit data width or new feature registers.
ADS8507IBDWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 40k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8507IBDWR FAQ
1.How can I place an order for ADS8507IBDWR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8507IBDWR 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 ADS8507IBDWR reliable?
The price and inventory of ADS8507IBDWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8507IBDWR is usually 5 days.
3.What payment methods are accepted for ADS8507IBDWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8507IBDWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8507IBDWR?
ADS8507IBDWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8507IBDWR 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 ADS8507IBDWR?
For technical support, including ADS8507IBDWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8507IBDWR requirements.
6.How does Aetrix verify that ADS8507IBDWR is sourced from the original manufacturer or authorized distributors?
All ADS8507IBDWR 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 ADS8507IBDWR meets industry standards.
7.What is the process for return or replacement of ADS8507IBDWR?
All ADS8507IBDWR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8507IBDWR, 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 ADS8507IBDWR part is unused and in its original packaging.
Return procedure for ADS8507IBDWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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