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Texas Instruments ADS8341E/2K5G4
- Part No.:
- ADS8341E/2K5G4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADS8341E/2K5G4.pdf
- Description:
- IC ADC 16BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,003
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Product details
Overview
ADS8341E/2K5G4 from Texas Instruments is a 16-bit, 4-channel SAR analog-to-digital converter with synchronous serial interface, single-supply operation (2.7V–5V), and SSOP-16 package. It delivers 100kHz throughput, 86dB SINAD, and supports both 4-channel single-ended or 2-channel differential input configurations - ideal for portable data acquisition in battery-powered systems.
For engineers reviewing the ADS8341E/2K5G4 datasheet, ADS8341E/2K5G4 pinout, ADS8341E/2K5G4 application, or ADS8341E/2K5G4 equivalent, key selection criteria include its 16-bit resolution with ±8 LSB integral linearity error, 2.4MHz max external clock support, shutdown mode (<15µW), and guaranteed operation from –40°C to +85°C.
Technical Context
The ADS8341E/2K5G4 implements a capacitive redistribution successive approximation register (SAR) architecture with integrated sample-and-hold, enabling precise digitization without external hold circuitry. Its four-channel analog multiplexer supports flexible input routing via SGL/DIF and A2–A0 control bits, allowing dynamic reconfiguration between single-ended (CHx-to-COM) and differential (CHx-to-CHy) modes.
Digital interface timing is tightly coupled to DCLK: in external clock mode, conversion completes in 24 clock cycles (16 for SAR, 8 for control byte); in internal clock mode, BUSY asserts low for ≤8µs while DCLK may be paused, decoupling conversion timing from host processor speed. Reference input (0.5V to VCC) directly scales full-scale range and LSB weight (e.g., 76µV at 5V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit SAR - provides 65,536 discrete output codes with no missing codes guaranteed over temperature. |
| Throughput Rate | 100kHz - enables real-time sampling of signals up to ~40kHz (Nyquist-limited) with full 16-bit accuracy. |
| SINAD | 86dB at 10kHz input - corresponds to ~14.3 effective number of bits (ENOB), critical for high-fidelity measurement. |
| Input Configuration | 4-channel single-ended or 2-channel differential - selected dynamically via serial control bits, eliminating need for external mux or signal conditioning. |
| Supply Range | 2.7V to 5V - supports direct integration into 3.3V and 5V systems; quiescent current drops to 3µA in power-down mode. |
| Reference Range | 0.5V to VCC - allows scalable input range (e.g., 0–2.5V or 0–5V); LSB size adjusts proportionally (7.6µV at 0.5V, 76µV at 5V). |
| Operating Temp | –40°C to +85°C - fully specified across industrial temperature range with tested performance for offset/gain match and channel isolation. |
Pinout & Package
ADS8341E/2K5G4 is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, optimized for compact PCB layouts in space-constrained portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VCC (Pins 1, 9) | Power supply input | Dual power pins reduce IR drop and improve PSRR; accepts 2.7V–5V with 2.5mW typical dissipation at 5V/100kHz. |
| CH0–CH3 (Pins 2–5) | Analog input channels | Four independent inputs configurable as single-ended (vs COM) or differential pairs; each has 25pF capacitance and ±1µA leakage. |
| COM (Pin 6) | Analog ground reference | Sets zero-code voltage in single-ended mode; must connect to system analog ground or stable reference point. |
| SHDN (Pin 7) | Shutdown control | Active-low input; reduces supply current to <15µW when asserted, enabling rapid wake-up for burst-mode sampling. |
| VREF (Pin 8) | External reference input | Unbuffered input driving CDAC array; draws 13–40µA depending on VREF and conversion rate; sets full-scale span. |
| GND (Pins 10, 11) | Analog ground return | Dual ground pins minimize noise coupling; must connect to clean analog ground plane, separate from digital GND if possible. |
| DOUT (Pin 12) | Serial data output | CMOS-compatible, tri-state when CS is high; outputs MSB-first straight-binary code synchronized to DCLK falling edge. |
| BUSY (Pin 13) | Conversion status flag | Active-high open-drain output indicating conversion in progress; used for handshaking in interrupt-driven systems. |
| DIN (Pin 14) | Serial data input | Latches 8-bit control byte (S-A2-A1-A0-xx-SGL/DIF-PD1-PD0) on rising DCLK edges; tolerant to 5.5V regardless of VCC. |
| CS (Pin 15) | Chip select | Active-low enable; initiates conversion sequence and enables DOUT/BUSY; must remain low during full 24-cycle transaction. |
| DCLK (Pin 16) | Serial clock input | Drives both data transfer and SAR conversion in external mode (max 2.4MHz); held low during internal clock mode for best noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-compatible upgrade path | Direct replacement for ADS7841 with identical SSOP-16 footprint and pinout, enabling drop-in migration to 16-bit resolution. |
| Flexible input architecture | On-chip 4:1 multiplexer supports software-selectable single-ended or differential acquisition without external components. |
| Low-power shutdown | Reduces current to <15µW (typical) while retaining configuration state, enabling µA-level average power in duty-cycled systems. |
| Two clock operation modes | Supports external clock (24-cycle deterministic timing) or internal clock (≤8µs conversion, host-controlled readout) - adapts to MCU resource constraints. |
| Wide reference voltage range | Accepts 0.5V–VCC reference, enabling precision scaling for low-voltage sensor interfaces (e.g., 0–1.25V with 1.25V VREF). |
Applications
| Data Acquisition Systems | Portable Test Equipment |
|---|---|
|
Use Scenario: Multi-channel voltage logging in handheld environmental monitors measuring temperature, humidity, and pressure sensors. IC Role / Device Role / Timing Role: Central 16-bit ADC acquiring synchronized samples from four analog sensor outputs with programmable gain and reference scaling. Use Value: 86dB SINAD ensures accurate digitization of low-level sensor signals; 100kHz throughput supports oversampling for noise reduction in battery-powered units. |
Use Scenario: Handheld oscilloscope or waveform analyzer capturing transient signals in field service applications. IC Role / Device Role / Timing Role: High-resolution sampling front-end converting differential probe inputs with minimal external circuitry. Use Value: Differential input mode rejects common-mode noise from unshielded probes; 2.4MHz DCLK interface enables tight timing control for trigger synchronization. |
| Industrial Process Control | Battery-Powered Medical Devices |
|
Use Scenario: PLC I/O module monitoring analog process variables (flow, level, pH) across multiple sensor loops. IC Role / Device Role / Timing Role: Precision ADC interfacing with 4–20mA transmitters and RTDs via programmable gain amplifiers and COM-referenced inputs. Use Value: Guaranteed –40°C to +85°C operation ensures reliability in harsh environments; channel-to-channel isolation >100dB prevents crosstalk between critical control loops. |
Use Scenario: Portable ECG or glucose meter requiring low-noise, low-power analog front-end for biopotential sensing. IC Role / Device Role / Timing Role: Low-power 16-bit converter digitizing amplified differential bio-signals with adaptive reference and shutdown between measurements. Use Value: <15µW shutdown current extends battery life; 86dB SINAD preserves diagnostic fidelity in low-amplitude physiological waveforms. |
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 |
|---|---|---|---|
| ADS8342E/2K5 | Same pinout and architecture but rated for 100ksps with improved INL (±4 LSB vs ±8 LSB) and lower noise (15µVrms vs 20µVrms). | Better suited for metrology-grade applications requiring tighter linearity and lower noise floor. | Select ADS8342E/2K5 when ENOB >14.5 bits and INL <±5 LSB are mandatory; otherwise ADS8341E/2K5 offers cost-optimized performance. |
| ADS7841E/2K5 | 12-bit resolution, same SSOP-16 package and pinout, 100ksps, but lower power (3.5mW vs 7.5mW at 5V) and reduced dynamic range (72dB SINAD). | Targeted at cost-sensitive, lower-precision applications where 12-bit resolution suffices. | Choose ADS7841E/2K5 only if 12-bit resolution meets system requirements and board layout reuse is critical; not a functional upgrade. |
Compared with ADS8342E/2K5, the ADS8341E/2K5 trades 4 LSB INL and 5dB SINAD for lower cost and broader legacy compatibility; versus ADS7841E/2K5, it delivers 4 extra bits of resolution and 14dB dynamic range improvement at modest power increase - making it the optimal mid-tier 16-bit solution for portable instrumentation.
Availability
ADS8341E/2K5G4 is available at Aetrix Electronics and suitable for data acquisition, test and measurement, and industrial process control applications requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade performance.
Supply support for ADS8341E/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 industrial-grade IC design.
The ADS8341E/2K5G4 belongs to TI's precision SAR ADC product line, engineered specifically for portable, battery-operated instrumentation demanding high resolution, low power, and flexible input configuration in compact form factors.
FAQ
What is the maximum sampling rate supported by the ADS8341E/2K5G4?
The ADS8341E/2K5G4 supports a maximum throughput rate of 100kHz, achieved with a 2.4MHz external DCLK in external clock mode (24 clock cycles per conversion). At this rate, the device consumes 7.5mW typical power at +5V and maintains 86dB SINAD and ±8 LSB integral linearity error across the full industrial temperature range.
Does the ADS8341E/2K5G4 require an external reference voltage?
Yes, the ADS8341E/2K5G4 requires an external reference voltage applied to the VREF pin. It accepts any stable voltage from 0.5V to +VCC, which directly defines the full-scale input range (e.g., 0V to VREF in single-ended mode). The reference is unbuffered and draws 13–40µA depending on VREF value and conversion rate.
Can the ADS8341E/2K5G4 operate from a 3.3V supply?
Yes, the ADS8341E/2K5G4 is fully specified for operation from 2.7V to 5V, including standard 3.3V systems. At +3.3V supply with 2.5V reference, it delivers 100kHz throughput, 86dB SINAD, and quiescent current of 1.2–1.85mA - making it ideal for mixed-signal designs powered from 3.3V rails.
How does the ADS8341E/2K5G4 handle differential input configurations?
The ADS8341E/2K5G4 supports true differential inputs via its 4-channel multiplexer: setting SGL/DIF = LOW and selecting appropriate A2–A0 bits configures CH0–CH3 as differential pairs (e.g., CH0–CH1 or CH2–CH3). The internal comparator measures the voltage difference between +IN and –IN, with –IN limited to –0.2V to +1.25V and +IN spanning –0.2V to +VCC + 0.2V.
What is the purpose of the SHDN pin on the ADS8341E/2K5G4?
The SHDN (shutdown) pin on the ADS8341E/2K5G4 is an active-low control that places the device into ultra-low-power mode, reducing supply current to under 15µW. In shutdown, the internal bias circuits and reference buffer are disabled, but configuration registers retain state. Wake-up is instantaneous - the first conversion after SHDN release is fully valid with no settling delay.
ADS8341E/2K5G4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 100k
- Number of Inputs:
- 2, 4
- 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:
- 2.7V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8341E/2K5G4 FAQ
1.How can I place an order for ADS8341E/2K5G4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8341E/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 ADS8341E/2K5G4 reliable?
The price and inventory of ADS8341E/2K5G4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8341E/2K5G4 is usually 5 days.
3.What payment methods are accepted for ADS8341E/2K5G4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8341E/2K5G4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8341E/2K5G4?
ADS8341E/2K5G4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8341E/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 ADS8341E/2K5G4?
For technical support, including ADS8341E/2K5G4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8341E/2K5G4 requirements.
6.How does Aetrix verify that ADS8341E/2K5G4 is sourced from the original manufacturer or authorized distributors?
All ADS8341E/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 ADS8341E/2K5G4 meets industry standards.
7.What is the process for return or replacement of ADS8341E/2K5G4?
All ADS8341E/2K5G4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8341E/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 ADS8341E/2K5G4 part is unused and in its original packaging.
Return procedure for ADS8341E/2K5G4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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