My Inquiry
My Account
Texas Instruments ADS8326IBDGKTG4
- Part No.:
- ADS8326IBDGKTG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS8326IBDGKTG4.pdf
- Description:
- IC ADC 16BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,292
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS8326IBDGKTG4 from Texas Instruments is a 16-bit, SAR analog-to-digital converter with differential input, SPI/SSI-compatible serial interface, and microPower operation (2mW at 2.7V/100kHz). It delivers ±1.5LSB max INL, 14.35-bit ENOB at 10kHz, and supports 0.1V to VDD reference voltage. It serves precision data acquisition in battery-powered instrumentation and isolated sensor interfaces.
For engineers reviewing the ADS8326IBDGKTG4 datasheet, ADS8326IBDGKTG4 pinout, ADS8326IBDGKTG4 application, or ADS8326IBDGKTG4 equivalent, key selection criteria include guaranteed 16-bit no-missing-codes performance across full supply range, low 30μVRMS noise, differential input common-mode tolerance (–0.3V to +0.5V), and MSOP-8 package compatibility with ADS7816/ADS7822/ADS8325.
Technical Context
The ADS8326IBDGKTG4 implements a capacitive redistribution SAR architecture with integrated sample-and-hold, enabling single-cycle 16-bit conversion in 22 DCLOCK cycles. Its internal CDAC and comparator operate synchronously with an externally supplied DCLOCK signal (24kHz–6MHz), supporting throughput rates up to 250kSPS at 5V or 200kSPS at 2.7V.
It features a true differential analog input (+IN/–IN) referenced to GND, with programmable reference input (REF) accepting 0.1V to VDD. The CS/SHDN pin enables hardware-controlled power-down mode (0.2μA at 5V), and DOUT outputs straight binary data LSB-first on the falling edge of DCLOCK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full-scale monotonicity and no missing codes over –40°C to +85°C. |
| INL (max) | ±1.5 LSB - ensures absolute accuracy ≤ ±0.0023% of FSR for calibrated systems. |
| Throughput rate | 200 kSPS at 2.7V - enables real-time sampling of signals up to ~60kHz full-power bandwidth. |
| Power dissipation | 2 mW at 2.7V/100kHz - allows continuous operation in energy-constrained portable designs. |
| Reference range | 0.1V to VDD - permits flexible scaling from low-voltage sensors to rail-referenced inputs. |
| Interface | SPI/SSI-compatible serial - supports direct connection to MCU SPI peripherals without level-shifting. |
| Input type | Differential (±IN) - rejects common-mode noise and improves SNR in noisy industrial environments. |
Pinout & Package
ADS8326IBDGKTG4 is housed in an MSOP-8 package (DGK) with exposed thermal pad internally connected to substrate. Pin 1 is REF; pin 4 is GND; pin 5 is CS/SHDN (active-low chip select / high-level shutdown); pin 6 is DOUT (CMOS/LVCMOS-compatible serial output); pin 7 is DCLOCK (asynchronous external clock input); pin 8 is VDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Voltage reference input | Accepts 0.1V–VDD reference; input impedance >5GΩ enables use with high-impedance sources or buffered references. |
| +IN (Pin 2) | Noninverting analog input | Differential input node; operates with –0.3V to (VDD+0.2)V common-mode range and 20pF differential capacitance. |
| –IN (Pin 3) | Inverting analog input | Completes differential pair; matched to +IN for common-mode rejection; input resistance 100–150Ω when enabled. |
| GND (Pin 4) | Analog ground reference | Primary return path for analog circuitry; thermal pad may be tied to AGND but must be isolated from DGND. |
| CS/SHDN (Pin 5) | Digital control input | Active-low chip select initiates conversion; logic-high forces 0.2μA shutdown current and tri-states DOUT. |
| DOUT (Pin 6) | Serial data output | LSB-first straight binary output synchronized to DCLOCK falling edge; 5pF load capacitance limit. |
| DCLOCK (Pin 7) | Asynchronous clock input | Drives internal timing; minimum pulse width 200ns; frequency sets throughput (24kHz–6MHz). |
| VDD (Pin 8) | Power supply | 2.7V–5.5V operation; supplies analog and digital sections; decoupling required per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit no missing codes | Guaranteed over full temperature and supply range (–40°C to +85°C, 2.7V–5.5V), eliminating code gaps in critical measurement systems. |
| MicroPower at low throughput | 0.2mW average dissipation at 10kHz sampling - extends battery life in remote monitoring nodes. |
| Differential input architecture | Rejects common-mode interference up to ±0.5V offset and provides 91.5dB SNR at 2kHz, improving signal fidelity in EMI-prone settings. |
| Pin-compatible upgrade path | Direct replacement for ADS7816, ADS7822, ADS8325 - enables resolution upgrade without PCB redesign. |
| Flexible reference interface | Supports external reference voltages as low as 0.1V, enabling high-resolution measurement of sub-100mV sensor outputs. |
Applications
| Battery-Powered Instrumentation | Isolated Data Acquisition |
|---|---|
Use Scenario: Portable handheld multimeter acquiring DC voltage, current, and resistance with 16-bit resolution and <10ppm linearity error. IC Role / Device Role / Timing Role: Primary ADC performing synchronous sampling with internal S/H; driven by MCU's SPI clock at 200kHz. Use Value: 2mW power consumption at 200kSPS enables >100-hour battery life on two AA cells; ±1.5LSB INL ensures traceable calibration without field adjustment. | Use Scenario: High-voltage motor drive monitoring phase currents via isolated shunt amplifiers feeding into ADC side of digital isolator. IC Role / Device Role / Timing Role: Isolated-side ADC digitizing conditioned analog signals; CS/SHDN controlled by isolated GPIO to minimize leakage during idle. Use Value: Differential input rejects common-mode transients induced by fast-switching IGBTs; 30μVRMS noise preserves resolution of millivolt-level shunt measurements. |
| Remote Sensor Node | Industrial Process Control |
Use Scenario: Wireless vibration sensor node measuring accelerometer outputs in predictive maintenance systems, transmitting FFT coefficients over LoRaWAN. IC Role / Device Role / Timing Role: Low-power ADC sampling at 10kHz; enters shutdown between bursts to conserve energy. Use Value: 0.2mW average power at 10kHz allows multi-year operation on primary lithium cell; 14.35-bit ENOB captures harmonic content essential for bearing fault detection. | Use Scenario: PLC analog input module digitizing 4–20mA loop signals with cold-junction compensation and thermocouple linearization. IC Role / Device Role / Timing Role: Precision ADC interfaced to op-amp conditioning stage; REF pin driven by stable 2.5V reference for ratiometric accuracy. Use Value: 0.1V–VDD reference range accommodates 2.5V reference while maintaining full 16-bit dynamic range; ±1mV offset enables <0.01% FSR zero-point accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution, low-power SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8325IBDRBT | Same 16-bit SAR core, SON-8 package (3×3mm), identical INL/SNR specs, but lacks MSOP-8 option. | Preferred for space-constrained PCBs where 3×3mm footprint is mandatory; thermal pad requires different solder stencil. | Select ADS8325IBDRBT only when board area is critical and SON-8 assembly capability exists. |
| ADS8860IDRCT | 16-bit SAR ADC with 1MSPS throughput, 1.8V–3.6V supply, SPI interface, but higher 12mW power at 1MSPS and no 2.7V–5.5V dual-voltage support. | Suitable for high-speed data loggers needing >200kSPS; not viable for 5V systems or ultra-low-power 10kHz sensing. | Choose ADS8860IDRCT only when throughput >200kSPS is required and 5V operation is unnecessary. |
Compared with ADS8325IBDRBT and ADS8860IDRCT, ADS8326IBDGKTG4 uniquely balances 200kSPS throughput, 2.7V–5.5V supply flexibility, and sub-2mW power at 100kHz - making it optimal for dual-voltage industrial sensors and long-life battery devices where pin-for-pin compatibility with legacy TI 12-bit ADCs matters.
Availability
ADS8326IBDGKTG4 is available at Aetrix Electronics and suitable for battery-operated instrumentation, isolated data acquisition modules, and remote sensor nodes requiring stable component supply and long-term manufacturability.
Supply support for ADS8326IBDGKTG4 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The ADS8326IBDGKTG4 belongs to TI's precision data acquisition product line, designed specifically for high-resolution, low-power, and pin-compatible ADC upgrades in portable and isolated measurement systems.
FAQ
What is the maximum sampling rate supported by the ADS8326IBDGKTG4?
The ADS8326IBDGKTG4 achieves a maximum throughput rate of 200 kSPS when operated at 2.7V and 200kHz sampling frequency, with conversion time fixed at 22 DCLOCK cycles. At 5V, it supports up to 250 kSPS. The actual rate depends on DCLOCK frequency (24kHz–6MHz) and supply voltage, as specified in the recommended operating conditions table of the SBAS343C datasheet.
Does the ADS8326IBDGKTG4 require an external reference voltage?
Yes, the ADS8326IBDGKTG4 requires an external reference voltage applied to the REF pin. It accepts any stable voltage from 0.1V to VDD, enabling flexible scaling for low-amplitude sensor signals or rail-referenced inputs. Internal reference is not provided; reference input impedance exceeds 5GΩ, allowing direct connection to precision voltage references like REF5025.
How does the CS/SHDN pin function on the ADS8326IBDGKTG4?
The CS/SHDN pin on the ADS8326IBDGKTG4 serves dual functions: when pulled low, it acts as chip select to initiate conversion and enable serial data output; when driven high, it places the device in shutdown mode, reducing supply current to 0.2μA at 5V. This pin is CMOS/LVCMOS-compatible and must be driven with clean digital logic to avoid metastability during state transitions.
Is the ADS8326IBDGKTG4 pin-compatible with older TI ADCs like the ADS7816?
Yes, the ADS8326IBDGKTG4 is explicitly pin-compatible with the ADS7816, ADS7822, ADS7826, ADS7827, ADS7829, ADS8320, and ADS8325 in the MSOP-8 (DGK) package. Pin assignments for REF, +IN, –IN, GND, CS/SHDN, DOUT, DCLOCK, and VDD match exactly - enabling drop-in 16-bit resolution upgrades without layout changes.
What is the typical effective number of bits (ENOB) for the ADS8326IBDGKTG4 at 10kHz input frequency?
At a 10kHz input frequency with 2.5VPP sine wave and VDD = 2.7V, the ADS8326IBDGKTG4 delivers a typical ENOB of 12.20 bits, corresponding to ~75dB SINAD. When operated at 5V with 5VPP input at 10kHz, ENOB improves to 14.35 bits (88dB SINAD), reflecting its superior dynamic performance under higher supply and reference conditions.
ADS8326IBDGKTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- microPOWER™
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8326IBDGKTG4 FAQ
1.How can I place an order for ADS8326IBDGKTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8326IBDGKTG4 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 ADS8326IBDGKTG4 reliable?
The price and inventory of ADS8326IBDGKTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8326IBDGKTG4 is usually 5 days.
3.What payment methods are accepted for ADS8326IBDGKTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8326IBDGKTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8326IBDGKTG4?
ADS8326IBDGKTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8326IBDGKTG4 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 ADS8326IBDGKTG4?
For technical support, including ADS8326IBDGKTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8326IBDGKTG4 requirements.
6.How does Aetrix verify that ADS8326IBDGKTG4 is sourced from the original manufacturer or authorized distributors?
All ADS8326IBDGKTG4 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 ADS8326IBDGKTG4 meets industry standards.
7.What is the process for return or replacement of ADS8326IBDGKTG4?
All ADS8326IBDGKTG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8326IBDGKTG4, 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 ADS8326IBDGKTG4 part is unused and in its original packaging.
Return procedure for ADS8326IBDGKTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS8326IBDGKTG4 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…
