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Texas Instruments ADS8341E/2K5
- Part No.:
- ADS8341E/2K5
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADS8341E/2K5.pdf
- Description:
- IC ADC 16BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,918
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Product details
Overview
ADS8341E/2K5 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 up to 100kHz throughput. It features 4 single-ended or 2 differential input channels, 86dB SINAD at 10kHz, and integrated multiplexer-ideal for portable data loggers and battery-powered measurement systems.
For engineers reviewing the ADS8341E/2K5 datasheet, ADS8341E/2K5 pinout, ADS8341E/2K5 application, or ADS8341E/2K5 equivalent, key selection considerations include its SSOP-16 package, 16-cycle conversion time, shutdown mode (<15µW), VREF range (0.5V to VCC), and CMOS-compatible serial timing with BUSY/DCLK/DIN/DOUT control.
Technical Context
The ADS8341E/2K5 implements a capacitive redistribution SAR architecture with an on-chip 4-channel analog multiplexer and unbuffered reference input. Its conversion process requires 24 clock cycles (8 for control byte, 16 for result) in external clock mode or internal clock generation when PD1=1/PD0=0.
It supports two operating modes: single-ended (CHx vs COM) or differential (CHx vs CHy), selected via SGL/DIF and A2–A0 bits in the 8-bit control byte. Input voltage range scales directly with VREF (0.5V to +VCC), and LSB size equals VREF/65536 - e.g., 76µV at 5V reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit SAR ADC with no missing codes guaranteed over full temperature range (–40°C to +85°C). |
| Throughput Rate | Up to 100kHz sampling rate using 2.4MHz DCLK; conversion time fixed at 16 clock cycles. |
| SINAD / SNR | 86dB SINAD and ≥90dB SNR at 10kHz input (5Vp-p, +5V supply); enables high-fidelity signal capture in test equipment. |
| Input Configuration | 4-channel single-ended (vs COM) or 2-channel differential; configurable via serial control bits without hardware change. |
| Power Dissipation | 7.5–10mW at 100kHz/+5V; drops to <15µW in shutdown mode (SHDN = LOW), critical for battery life extension. |
| Reference Range | VREF accepts 0.5V to +VCC; sets full-scale input span (e.g., 0–2.5V at 2.5V reference), enabling flexible sensor scaling. |
| Integral Linearity | ±8 LSB max INL (ADS8341E grade) ensures accurate multi-channel calibration in industrial process control. |
Pinout & Package
ADS8341E/2K5 is housed in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, JEDEC MO-153 compliant, and rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VCC (Pins 1, 9) | Primary power supply | Dual power pins reduce IR drop; supports 2.7V–5V single supply - compatible with Li-ion and 3.3V/5V logic rails. |
| CH0–CH3 (Pins 2–5) | Analog input channels | Four independent inputs selectable via multiplexer; support single-ended or differential acquisition without external switches. |
| COM (Pin 6) | Analog ground reference | Sets zero-code voltage in single-ended mode; must be connected to system analog ground or bias point. |
| SHDN (Pin 7) | Shutdown control | Active-low enable: pulls device into sub-15µW state; recovery is instantaneous - no wake-up delay before first valid conversion. |
| VREF (Pin 8) | Unbuffered reference input | Directly drives CDAC array; current draw varies with conversion rate and VREF value (e.g., ~13µA at 2.5V/100kHz). |
| GND (Pins 10, 11) | Analog ground return | Dual GND pins isolate analog return path; must connect to low-impedance analog ground plane to maintain 86dB SINAD. |
| DOUT (Pin 12) | Serial data output | Tri-state when CS = HIGH; outputs MSB-first straight-binary code on DCLK falling edge - compatible with SPI master. |
| BUSY (Pin 13) | Conversion status indicator | Active-high during conversion in external clock mode; remains LOW during conversion in internal clock mode - simplifies timing handshaking. |
| DIN (Pin 14) | Serial data input | Latches 8-bit control byte (S-A2-A1-A0-xx-SGL/DIF-PD1-PD0) on DCLK rising edge; over-voltage tolerant to 5.5V. |
| CS (Pin 15) | Chip select | Enables serial interface and initiates conversion sequence; falling edge triggers acquisition phase - critical for synchronization. |
| DCLK (Pin 16) | Serial clock input | Drives both data I/O and SAR conversion in external mode (max 2.4MHz); must be held LOW during internal clock conversions. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4-channel multiplexer | Eliminates need for external analog switches in multi-sensor systems - reduces BOM count and layout area in portable DAQ. |
| Configurable single-ended/differential mode | Single control bit (SGL/DIF) changes input topology - enables noise rejection in EMI-prone environments without redesign. |
| Wide VREF range (0.5V to +VCC) | Permits direct interfacing with low-voltage sensors (e.g., 1.8V MEMS) while maintaining full 16-bit resolution scaling. |
| Two clock operation modes | Internal clock mode decouples conversion timing from host MCU clock - simplifies firmware and improves noise immunity. |
| Low-power shutdown (<15µW) | Extends battery runtime in intermittent-sampling applications like environmental monitors - exit latency is zero. |
Applications
| Portable Data Logging | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Multi-channel temperature, pressure, and humidity sensing in handheld field instruments with 24-hour battery life. IC Role / Device Role / Timing Role: Primary ADC acquiring synchronized samples from four sensors via internal MUX; uses SHDN between readings to minimize average current. Use Value: 16-bit resolution and 86dB SINAD ensure ±0.1°C thermal accuracy; SSOP-16 footprint fits compact PCBs without sacrificing performance. |
Use Scenario: Real-time monitoring of motor current, voltage, and temperature in PLC-based factory automation systems. IC Role / Device Role / Timing Role: High-accuracy front-end digitizer for analog feedback loops; operates in differential mode to reject common-mode noise from 480VAC lines. Use Value: Channel-to-channel isolation >100dB prevents crosstalk between current and voltage measurements; 100kHz throughput supports fast control loop updates. |
| Battery-Powered Medical Devices | Test & Measurement Equipment |
|
Use Scenario: Portable ECG and bioimpedance analyzers requiring low-noise, low-power signal acquisition from dry electrodes. IC Role / Device Role / Timing Role: Signal-chain ADC with programmable gain via VREF scaling; uses internal clock mode to avoid digital noise coupling from MCU. Use Value: 20µVrms noise floor and 1.2LSB offset match across channels enable reliable baseline detection in microvolt-level biopotentials. |
Use Scenario: Benchtop multimeters and oscilloscope front-ends needing calibrated DC accuracy and dynamic range. IC Role / Device Role / Timing Role: Precision digitizer referenced to stable 5.000V source; leverages ±8 LSB INL and 92dB SFDR for metrology-grade linearity. Use Value: Straight-binary output and deterministic 24-cycle timing simplify firmware calibration routines; SSOP package allows easy socketing for repair/rework. |
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 | Pin-compatible upgrade with improved specs: ±6 LSB INL (vs ±8), 88dB SINAD, and lower 5mW power at 100kHz/+5V. | Preferred for new designs requiring tighter linearity or lower noise; identical interface and layout - no PCB change needed. | Select ADS8342E/2K5 when higher DC accuracy and AC performance are required without altering firmware or layout. |
| ADS7841E/2K5 | 12-bit predecessor; same SSOP-16 pinout, 4-channel MUX, and serial interface but lower resolution and 72dB SINAD. | Suitable for cost-sensitive applications where 12-bit resolution suffices (e.g., basic voltage monitoring), not for precision measurement. | Choose ADS7841E/2K5 only if legacy compatibility or BOM cost reduction outweighs need for 16-bit fidelity and noise performance. |
Compared with ADS8341E/2K5, ADS8342E/2K5 delivers measurable improvement in linearity and dynamic range with zero layout impact, while ADS7841E/2K5 trades resolution and AC specs for lower unit cost - making each viable only within distinct accuracy and budget constraints.
Availability
ADS8341E/2K5 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and battery-powered medical devices requiring stable component supply and long-term manufacturability.
Supply support for ADS8341E/2K5 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 ICs.
The ADS8341E/2K5 belongs to TI's precision SAR ADC product line, engineered for high-resolution, low-power data acquisition in portable and harsh-environment applications - emphasizing integration, noise immunity, and supply flexibility.
FAQ
What is the maximum sampling rate supported by the ADS8341E/2K5?
The ADS8341E/2K5 achieves a maximum throughput rate of 100kHz when driven by a 2.4MHz DCLK in external clock mode. This requires exactly 24 clock cycles per conversion (8 for control byte, 16 for result). At lower DCLK frequencies, the sampling rate scales linearly - e.g., 1.2MHz DCLK yields 50kHz throughput. The ADS8341E/2K5 maintains full 16-bit performance across this range.
Does the ADS8341E/2K5 require an external reference voltage?
Yes, the ADS8341E/2K5 requires an external reference voltage applied to the VREF pin. It accepts any stable voltage from 0.5V to +VCC (2.7V–5V), and the full-scale input range is 0V to VREF in single-ended mode. The reference is unbuffered and draws current proportional to conversion rate - e.g., ~13µA at 2.5V/100kHz. The ADS8341E/2K5 does not include an internal reference.
How does the SHDN pin function on the ADS8341E/2K5?
The SHDN pin on the ADS8341E/2K5 is an active-low shutdown control. When pulled LOW, the device enters a sub-15µW power state while retaining configuration. Upon returning HIGH, the ADS8341E/2K5 resumes operation instantly - the first conversion after wake-up is fully valid with no stabilization delay. This enables precise duty-cycled operation in battery-powered systems without firmware overhead.
Can the ADS8341E/2K5 perform differential measurements?
Yes, the ADS8341E/2K5 supports true differential input acquisition across two of its four channels (e.g., CH0–CH1 or CH2–CH3) by setting the SGL/DIF control bit LOW in the serial command byte. In this mode, the converter measures the voltage difference between the selected pair, providing common-mode noise rejection. The ADS8341E/2K5 specifies >100dB channel-to-channel isolation, ensuring minimal crosstalk during simultaneous differential reads.
What package type and temperature range does the ADS8341E/2K5 use?
The ADS8341E/2K5 is packaged in a 16-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, designated DBQ by Texas Instruments. It is fully specified and tested over the industrial temperature range of –40°C to +85°C, with guaranteed performance including INL, SINAD, and throughput across this range. The SSOP-16 footprint is compatible with standard reflow processes and automated optical inspection.
ADS8341E/2K5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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/2K5 FAQ
1.How can I place an order for ADS8341E/2K5 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8341E/2K5 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/2K5 reliable?
The price and inventory of ADS8341E/2K5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8341E/2K5 is usually 5 days.
3.What payment methods are accepted for ADS8341E/2K5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8341E/2K5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8341E/2K5?
ADS8341E/2K5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8341E/2K5 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/2K5?
For technical support, including ADS8341E/2K5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8341E/2K5 requirements.
6.How does Aetrix verify that ADS8341E/2K5 is sourced from the original manufacturer or authorized distributors?
All ADS8341E/2K5 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/2K5 meets industry standards.
7.What is the process for return or replacement of ADS8341E/2K5?
All ADS8341E/2K5 units undergo pre-shipment inspection (PSI). If there is an issue with ADS8341E/2K5, 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/2K5 part is unused and in its original packaging.
Return procedure for ADS8341E/2K5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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