My Inquiry
My Account
Texas Instruments ADS8324EB/2K5G4
- Part No.:
- ADS8324EB/2K5G4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS8324EB/2K5G4.pdf
- Description:
- IC ADC 14BIT SAR 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,069
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS8324EB/2K5G4 from Texas Instruments is a 14-bit, 50kHz SAR analog-to-digital converter with bipolar differential input, 1.8V single-supply operation, ±2 LSB integral linearity error, and micro-power consumption (2.5mW at 1.8V). It features SPI/SSI-compatible serial interface and supports reference voltages from 500mV to VCC/2 - ideal for precision battery-powered data acquisition.
For engineers reviewing the ADS8324EB/2K5G4 datasheet, ADS8324EB/2K5G4 pinout, ADS8324EB/2K5G4 application, or ADS8324EB/2K5G4 equivalent, key selection criteria include its 14-bit resolution at 50kHz with <1mW average power at 10kHz, MSOP-8 package compatibility, differential input architecture, and verified performance over –40°C to +85°C.
Technical Context
The ADS8324EB/2K5G4 implements a capacitive redistribution SAR architecture fabricated in 0.6μm CMOS, enabling full 14-bit acquisition in 4.5 clock cycles and conversion in 16 clock cycles. Its analog front-end supports true bipolar differential input with common-mode range dependent on VREF, and internal sample-and-hold eliminates external hold circuitry.
Digital interface uses a synchronous 3-wire SPI/SSI protocol: CS/SHDN initiates conversion and controls shutdown, DCLOCK synchronizes bit transfer on falling edges, and DOUT outputs 16-bit two's complement data (MSB-first) with one null bit prefix. Power-down current is ≤3μA when CS = VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - delivers 16,384 distinct output codes for high-fidelity signal digitization |
| Sampling Rate | 50 kHz - supports real-time monitoring of vibration, control feedback, and sensor signals up to ~20 kHz Nyquist bandwidth |
| Integral Linearity | ±2 LSB - ensures monotonicity and <0.012% full-scale error for accurate calibration-critical applications |
| Supply Voltage | 1.8 V - enables direct integration with low-voltage MCUs and energy-constrained systems without level-shifting |
| Power Dissipation | 2.5 mW at 1.8 V - allows continuous 50 kHz sampling in portable devices with minimal thermal impact |
| Reference Range | 500 mV to VCC/2 - sets full-scale span as ±VREF; e.g., 0.9 V ref yields ±0.9 V input range with 110 μV LSB size |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded data loggers and remote sensing nodes |
Pinout & Package
ADS8324EB/2K5G4 is housed in an MSOP-8 (VSSOP-8, DGK) package - 3.0 mm × 3.0 mm, 0.65 mm pitch, thermally enhanced for compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VREF | Reference Input | Accepts external voltage (500 mV to 0.9 V) that defines full-scale differential input range (±VREF) |
| +In | Non-Inverting Analog Input | One leg of fully differential input pair; must be impedance-matched to –In to avoid gain/offset drift |
| –In | Inverting Analog Input | Second leg of differential pair; common-mode voltage range shifts with VREF per Figure 2/3 |
| GND | Analog Ground | Low-impedance return path for analog circuitry; requires dedicated analog ground plane separation |
| CS/SHDN | Chip Select / Shutdown Control | Active-low conversion trigger; HIGH forces full power-down (≤3 μA), LOW enables conversion cycle |
| DOUT | Serial Data Output | CMOS-level output (0 to VCC); transmits 16-bit two's complement code MSB-first after fifth DCLOCK edge |
| DCLOCK | Data Clock Input | Asynchronous master clock (24 kHz–1.2 MHz); falling edge clocks data; duty cycle ≥200 ns high/low min |
| +VCC | Power Supply | Single 1.8 V supply; supports operation up to 3.6 V but specified performance only at 1.8 V |
Key Features
| Feature | Design Value |
|---|---|
| Bipolar Differential Input | Supports ±VREF input range with rejection of common-mode noise up to 74 dB at DC - critical for isolated sensor interfaces |
| Micro-Power Operation | 2.5 mW at 1.8 V and 50 kHz; drops to <1 mW average at 10 kHz via automatic power-down between conversions |
| SPI/SSI-Compatible Interface | 3-wire serial protocol with no external components required; compatible with TI MSP430, STM32, and PIC MCU SPI peripherals |
| Pin Compatibility | Pin-for-pin compatible with 12-bit ADS7817 - enables resolution upgrade without PCB redesign |
| Low Reference Current | ≤80 μA max at 50 kHz; ≤0.8 μA at 10 kHz - reduces burden on reference buffers like OPA2350 or REF30xx |
Applications
| Battery-Powered Data Loggers | Isolated Industrial Sensors |
|---|---|
|
Use Scenario: Continuous 24/7 environmental monitoring using coin-cell or Li-ion powered node with wireless telemetry. IC Role / Device Role / Timing Role: Primary ADC digitizing thermistor, pressure, and humidity sensor outputs at 10–50 kHz with synchronized sleep/wake cycles. Use Value: 2.5 mW active power and 3 μA shutdown current extend battery life to >2 years; MSOP-8 footprint minimizes board area. |
Use Scenario: High-voltage motor current sensing in PLC I/O modules with galvanic isolation between field and controller side. IC Role / Device Role / Timing Role: Isolated-side ADC capturing differential shunt voltage with precise timing referenced to isolated DCLOCK. Use Value: Bipolar differential input rejects common-mode transients; ±2 LSB INL ensures calibrated accuracy across temperature. |
| Multi-Channel Vibration Analyzers | Robotic Joint Torque Feedback |
|
Use Scenario: Simultaneous sampling of 4–8 accelerometer channels on rotating machinery for FFT-based fault detection. IC Role / Device Role / Timing Role: One ADS8324EB/2K5G4 per channel, driven by shared DCLOCK and CS lines for deterministic inter-channel phase alignment. Use Value: 50 kHz throughput and 14-bit resolution capture harmonics up to 20 kHz; low noise (60 μVrms) preserves SNR in spectral analysis. |
Use Scenario: Real-time torque estimation in servo-driven robotic joints using strain gauge bridges with ratiometric excitation. IC Role / Device Role / Timing Role: ADC interfacing directly to bridge amplifier output, providing closed-loop control feedback at 1–10 kHz update rates. Use Value: 1.8 V operation matches low-voltage op-amp rails (e.g., OPA2340); 110 μV LSB size resolves sub-0.1% torque changes. |
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 |
|---|---|---|---|
| ADS8325EB/2K5 | 16-bit resolution, same 50 kHz rate, 3.3 V min supply, higher power (4.5 mW @ 3.3 V) | Requires higher supply voltage; better for applications needing extended dynamic range over precision at 1.8 V | Select ADS8325EB/2K5 only if 16-bit ENOB and >90 dB SNR are mandatory and 3.3 V rail is available. |
| ADS7816U/2K5 | 12-bit, 200 kHz, 2.7–5.25 V supply, ±3 LSB INL, no bipolar input - unipolar only | Lacks differential/bipolar capability; suited for high-speed unipolar sensor readout where resolution <14-bit is acceptable | Choose ADS7816U/2K5 for cost-sensitive, high-throughput unipolar applications where layout simplicity outweighs resolution needs. |
Compared with ADS8324EB/2K5, ADS8325EB/2K5 trades 1.8 V compatibility for 2 extra bits and higher SNR, while ADS7816U/2K5 sacrifices resolution and bipolar support for speed and wider supply range - making ADS8324EB/2K5 the optimal balance for 14-bit, battery-operated, differential-sensing systems.
Availability
ADS8324EB/2K5G4 is available at Aetrix Electronics and suitable for battery-powered data loggers, isolated industrial sensors, multi-channel vibration analyzers, and robotic joint torque feedback systems requiring stable component supply and long-term industrial lifecycle support.
Supply support for ADS8324EB/2K5G4 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 low-power design.
The ADS8324EB/2K5G4 belongs to TI's precision SAR ADC product line, engineered specifically for ultra-low-power, high-resolution digitization in portable, isolated, and multi-channel industrial measurement systems.
FAQ
What is the maximum sampling rate of the ADS8324EB/2K5G4, and under what conditions is it guaranteed?
The ADS8324EB/2K5G4 achieves a guaranteed maximum sampling rate of 50 kHz when operated at +VCC = 1.8 V, VREF = 0.9 V, fCLK = 1.2 MHz (24 × fSAMPLE), and ambient temperature between –40°C and +85°C. This rate is validated per SBAS172A electrical characteristics table and confirmed in typical performance curves. Exceeding 50 kHz results in non-monotonic behavior or missing codes.
Does the ADS8324EB/2K5G4 support true bipolar input, and how is the input range configured?
Yes, the ADS8324EB/2K5G4 supports true bipolar differential input with a full-scale range of ±VREF. The input span is defined as (+In) – (–In), and valid common-mode ranges depend on VREF (e.g., ±0.1 V around VREF for differential mode). When VREF = 0.9 V, the device accepts inputs from –0.9 V to +0.9 V differentially - confirmed in Electrical Characteristics Table and Theory of Operation section.
What is the power-down current specification for the ADS8324EB/2K5G4, and how is it activated?
The ADS8324EB/2K5G4 draws ≤3 μA in power-down mode when CS/SHDN is driven HIGH (to VCC). This state disables both analog and digital sections completely. Quiescent current is 1.4–1.7 mA during active conversion at 1.8 V. Power-down current is measured per Absolute Maximum Ratings and Electrical Characteristics tables in SBAS172A, with typical shutdown current at 50 nA shown in Figure 9.
Is the ADS8324EB/2K5G4 pin-compatible with any other Texas Instruments ADCs, and what does that enable?
Yes, the ADS8324EB/2K5G4 is pin-compatible with the 12-bit ADS7817 in the same MSOP-8 package. This allows direct resolution upgrade in existing designs without PCB modification - preserving layout, routing, and BOM structure while gaining 2 additional bits of precision and improved INL (±2 LSB vs ±3 LSB).
What reference voltage range is supported by the ADS8324EB/2K5G4, and why is VREF limited to VCC/2?
The ADS8324EB/2K5G4 supports VREF from 500 mV to VCC/2 (0.9 V max at 1.8 V supply). This limit ensures the internal capacitor array operates within safe voltage margins during charge redistribution, preventing distortion or code errors. Lower VREF reduces LSB size (e.g., 110 μV at 0.9 V) but increases sensitivity to reference noise - specified in Reference Input section and Figure 3 of SBAS172A.
ADS8324EB/2K5G4 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:
- 14
- Sampling Rate (Per Second):
- 50k
- Number of Inputs:
- 1
- Input Type:
- 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:
- 1.8V ~ 3.6V
- Voltage - Supply, Digital:
- 1.8V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8324EB/2K5G4 FAQ
1.How can I place an order for ADS8324EB/2K5G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8324EB/2K5G4 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 ADS8324EB/2K5G4 reliable?
The price and inventory of ADS8324EB/2K5G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8324EB/2K5G4 is usually 5 days.
3.What payment methods are accepted for ADS8324EB/2K5G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8324EB/2K5G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8324EB/2K5G4?
ADS8324EB/2K5G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8324EB/2K5G4 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 ADS8324EB/2K5G4?
For technical support, including ADS8324EB/2K5G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8324EB/2K5G4 requirements.
6.How does Aetrix verify that ADS8324EB/2K5G4 is sourced from the original manufacturer or authorized distributors?
All ADS8324EB/2K5G4 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 ADS8324EB/2K5G4 meets industry standards.
7.What is the process for return or replacement of ADS8324EB/2K5G4?
All ADS8324EB/2K5G4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8324EB/2K5G4, 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 ADS8324EB/2K5G4 part is unused and in its original packaging.
Return procedure for ADS8324EB/2K5G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS8324EB/2K5G4 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…
