My Inquiry
My Account
Texas Instruments ADS8323YB/250
- Part No.:
- ADS8323YB/250
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-TQFP
- Datasheet:
-
ADS8323YB/250.pdf
- Description:
- IC ADC 16BIT SAR 32TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:178
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS8323YB/250 from Texas Instruments is a 16-bit, 500kSPS successive approximation register (SAR) analog-to-digital converter with internal 2.5V reference, bipolar differential input range (±2.5V), parallel byte-mode interface, and TQFP-32 package. It delivers 83dB SINAD, 96dB SFDR, and ±6 LSB integral linearity error for precision data acquisition in motor control and optical monitoring systems.
For engineers reviewing the ADS8323YB/250 datasheet, ADS8323YB/250 pinout, ADS8323YB/250 application, or ADS8323YB/250 equivalent, key selection criteria include its 500kSPS throughput with 1.6μs conversion time, dual-read 8-bit bus compatibility via BYTE control, low 85mW power at full speed, and industrial temperature range (–40°C to +85°C).
Technical Context
The ADS8323YB/250 implements a capacitor-based SAR architecture with integrated sample-and-hold amplifier and double-buffered internal 2.5V reference. Its differential input supports true bipolar operation (–VREF to +VREF) with 20MHz small-signal bandwidth and 30ps aperture jitter, enabling accurate sampling of fast-changing analog signals without external level-shifting circuitry in many cases.
Timing is externally clock-driven (25kHz–10MHz), with CONVST-initiated conversion, BUSY status signaling, and configurable parallel output via CS/RD/BYTE controls. The device uses binary two's complement format and requires separate analog/digital supplies (AVDD/DVDD = 4.75–5.25V) with ≤0.3V inter-rail voltage difference to maintain specified performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - provides 65,536 discrete output codes for high-fidelity signal digitization |
| Sampling Rate | 500kSPS - enables real-time capture of signals up to 250kHz Nyquist bandwidth |
| Integral Linearity | ±6 LSB - ensures monotonicity and <0.1% full-scale error across entire input range |
| SINAD | 83 dB at 100kHz - supports >13.5 effective number of bits (ENOB) for precision measurement |
| Power Dissipation | 85 mW at 500kSPS - allows thermally constrained embedded designs without active cooling |
| Input Range | ±2.5 V differential - accepts bipolar signals directly without external op-amp level shifters in many configurations |
| Reference | Internal 2.5V ±0.025V - eliminates need for external reference IC while maintaining 25ppm/°C drift |
Pinout & Package
TQFP-32 package with exposed thermal pad (PBS designation); 5mm × 5mm body, 0.8mm pitch, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB15 | Digital output data bus | 16-bit parallel output in binary two's complement; BYTE pin selects full-word (DB15–DB0) or upper/lower byte mode |
| CONVST | Digital input control | Active-low conversion start trigger; initiates sample-and-hold hold mode and conversion sequence |
| BUSY | Digital output status | Active-high open-drain signal indicating conversion in progress; synchronizes read timing |
| RD & CS | Digital input controls | Enable 3-state output drivers; both must be low to place DB0–DB15 in valid logic state |
| +IN / –IN | Analog input terminals | Differential input pair accepting ±2.5V span centered at common-mode voltage; 25pF input capacitance |
| REFIN / REFOUT | Reference interface | REFIN accepts 1.5–2.55V external reference; REFOUT sources internal 2.5V reference with 10μA drive capability |
| AGND / DGND | Ground connections | Separate analog and digital ground pins require star-point connection to minimize noise coupling |
| AVDD / DVDD | Power supplies | Independent 4.75–5.25V analog and digital supplies; voltage difference must not exceed 0.3V |
Key Features
| Feature | Design Value |
|---|---|
| Internal 2.5V reference | Eliminates external reference component count while delivering 25ppm/°C drift and 0.6mV line regulation |
| Bipolar differential input | Supports direct ±2.5V signal acquisition without front-end level-shifting circuitry in standard configurations |
| Byte-mode parallel interface | Enables use with 8-bit microcontrollers via two sequential reads (BYTE=0 then BYTE=1), reducing bus resource demand |
| Low aperture jitter (30ps) | Preserves SNR in high-frequency sampling applications by minimizing timing uncertainty during sample capture |
| Industrial temperature range | Guarantees full 16-bit performance from –40°C to +85°C without derating or calibration adjustments |
Applications
| High-Speed Data Acquisition | Optical Power Monitoring |
|---|---|
Use Scenario: Real-time capture of transient waveforms in automated test equipment (ATE) with sub-microsecond timing resolution. IC Role / Device Role / Timing Role: Primary ADC digitizing differential sensor outputs at 500kSPS with 1.6μs conversion latency and BUSY-synchronized readout. Use Value: Enables 16-bit fidelity at full throughput without pipeline delay or missing codes, critical for waveform reconstruction accuracy. | Use Scenario: Monitoring photodiode current in fiber-optic transceivers where laser bias stability depends on precise analog feedback. IC Role / Device Role / Timing Role: High-linearity ADC converting conditioned photocurrent into digital representation for closed-loop control algorithms. Use Value: ±6 LSB INL and 83dB SINAD ensure <0.1% gain error in optical power calibration across temperature. |
| Motor Control Feedback | Industrial ATE Systems |
Use Scenario: Sampling phase currents and back-EMF in three-phase BLDC motor drives requiring synchronized multi-channel acquisition. IC Role / Device Role / Timing Role: Precision ADC providing rotor position and torque feedback with deterministic 1.6μs conversion time for field-oriented control loops. Use Value: Bipolar input range matches typical current-sense amplifier outputs; low 85mW dissipation avoids thermal interference with nearby gate drivers. | Use Scenario: Embedded digitizer module in benchtop ATE platforms performing parametric testing of analog ICs and sensors. IC Role / Device Role / Timing Role: Standalone high-accuracy ADC interfacing to FPGA-based pattern generators and analysis engines via parallel bus. Use Value: TQFP-32 package supports compact PCB layout; 96dB SFDR prevents harmonic contamination during spectral analysis of DUT outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8322YB/250 | Same 16-bit SAR core and TQFP-32 package but lacks internal reference; requires external 2.5V reference source | Used where reference flexibility or lower cost outweighs board space savings from integrated reference | Select when external reference already exists in system or tighter reference drift specs are required |
| ADS8325IPW | 16-bit, 1MSPS SAR ADC in TSSOP-28; no internal reference; serial SPI interface instead of parallel | Preferred in space-constrained designs needing higher throughput and reduced pin count, not parallel bus compatibility | Choose for new designs prioritizing layout density and SPI integration over legacy parallel interface support |
Compared with ADS8322YB/250, the ADS8323YB/250 reduces BOM count via integrated reference but trades off reference customization; versus ADS8325IPW, it retains parallel interface compatibility and lower power at 500kSPS but sacrifices speed and package size.
Availability
ADS8323YB/250 is available at Aetrix Electronics and suitable for high-speed data acquisition, optical power monitoring, and motor control applications requiring stable component supply, long-term industrial temperature support, and guaranteed 16-bit linearity performance.
Supply support for ADS8323YB/250 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 and embedded processing technologies, with decades of expertise in precision data converters and industrial-grade IC design.
The ADS8323YB/250 belongs to TI's precision SAR ADC product line, engineered for applications demanding high resolution, low power, and robust performance in noisy industrial environments without sacrificing ease of interface.
FAQ
What is the maximum sampling rate supported by the ADS8323YB/250?
The ADS8323YB/250 supports a maximum sampling rate of 500kSPS, achieved with a 10MHz external CLOCK signal. Its 1.6μs conversion time and 350ns acquisition time enable this throughput while maintaining full 16-bit accuracy and monotonicity across the industrial temperature range.
Does the ADS8323YB/250 require an external reference voltage?
No, the ADS8323YB/250 includes an internal 2.5V bandgap reference with 25ppm/°C drift and 0.6mV line regulation. When using it, REFIN must be tied directly to REFOUT. An external reference between 1.5V and 2.55V may be used instead, but the internal reference eliminates component count and layout complexity in most applications.
How does the BYTE pin function on the ADS8323YB/250?
The BYTE pin on the ADS8323YB/250 configures the 16-bit parallel output for 8-bit bus compatibility: when BYTE = 0, all 16 bits appear on DB15–DB0; when BYTE = 1, only the upper 8 bits (DB15–DB8) appear on DB7–DB0. Two sequential RD cycles (BYTE low then high) read the full word, enabling use with 8-bit microcontrollers.
What are the power supply requirements for the ADS8323YB/250?
The ADS8323YB/250 requires separate analog (AVDD) and digital (DVDD) supplies, each 4.75–5.25V, with voltage difference limited to ≤0.3V. Total supply current is 17mA at 500kSPS, resulting in 85mW power dissipation. AGND and DGND must connect at a single low-impedance point to prevent noise coupling.
Is the ADS8323YB/250 compatible with bipolar input signals?
Yes, the ADS8323YB/250 accepts true bipolar differential inputs from –VREF to +VREF (±2.5V with internal reference). Its fully differential architecture provides 70dB common-mode rejection at DC and 50dB at 1MHz, supporting direct connection to current-sense amplifiers and other bipolar signal sources without external level-shifting circuitry in standard configurations.
ADS8323YB/250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 32-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- 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:
- 32-TQFP (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8323YB/250 FAQ
1.How can I place an order for ADS8323YB/250 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8323YB/250 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 ADS8323YB/250 reliable?
The price and inventory of ADS8323YB/250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8323YB/250 is usually 5 days.
3.What payment methods are accepted for ADS8323YB/250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8323YB/250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8323YB/250?
ADS8323YB/250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8323YB/250 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 ADS8323YB/250?
For technical support, including ADS8323YB/250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8323YB/250 requirements.
6.How does Aetrix verify that ADS8323YB/250 is sourced from the original manufacturer or authorized distributors?
All ADS8323YB/250 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 ADS8323YB/250 meets industry standards.
7.What is the process for return or replacement of ADS8323YB/250?
All ADS8323YB/250 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8323YB/250, 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 ADS8323YB/250 part is unused and in its original packaging.
Return procedure for ADS8323YB/250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS8323YB/250 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…
