Part A
ADS8341E
Texas Instruments
- Lifecycle
- Active
- Stock
- 6648 PCS
- Package
- SSOP-16
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS8343EB/2K5 is a viable functional replacement candidate for the ADS8341E, sharing the same 16-bit SAR architecture, 4-channel single-ended/2-channel differential input multiplexer, and SPI-compatible serial interface. Designers must validate the lower supply voltage range and reduced throughput before substitution in existing 5V, 100kSPS applications.
Supply Voltage Range
Validation required
Sampling Rate
Validation required
Resolution and Input Architecture
High match
Package and Pin Configuration
High match
Parts at a glance
Part B
ADS8343EB/2K5
Texas Instruments
- Lifecycle
- Active
- Stock
- 8177 PCS
- Package
- SSOP-16
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADS8341E | ADS8343EB/2K5 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both are 16-bit ADCs, so resolution is equivalent and not a differentiator for substitutability. |
| Number of Input Channels | 4 single-ended / 2 differential | 4 single-ended / 2 differential | Channel count and configuration determine how many signals can be multiplexed into the converter. |
| Sampling Rate | 100 kSPS | 100 kSPS | Maximum throughput affects the bandwidth of signals the ADC can digitize. |
| Supply Voltage | 2.7 V to 5.25 V | 2.7 V to 5.25 V | Supply range determines compatibility with the system power rail and logic levels. |
| Interface Type | SPI / QSPI / Microwire compatible serial | SPI / QSPI / Microwire compatible serial | Serial interface compatibility ensures the part can be driven by the host microcontroller without glue logic. |
| Input Type | Single-ended / pseudo-differential | Single-ended / pseudo-differential | Input configuration affects how sensor or signal grounds are handled in the measurement path. |
| Package / Mounting | SSOP-16 (surface mount) | SSOP-16 (surface mount) | Package and footprint must match for a drop-in replacement on an existing PCB. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range confirms suitability for industrial and extended-environment applications. |
| Reference Input | External reference | External reference | External reference support allows the system designer to set the full-scale range and accuracy. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS8341E | ADS8343EB/2K5 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 100k | 100k |
| Number of Inputs | 2, 4 | 2, 4 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | SPI | SPI |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External | External |
| Voltage - Supply, Analog | 2.7V ~ 3.6V, 5V | 2.7V ~ 3.6V, 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V, 5V | 2.7V ~ 3.6V, 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS8341E and ADS8343EB/2K5?
The ADS8341E is a 16-bit, 4-channel successive-approximation ADC with a serial interface, specified for operation from a single +2.7V to +5V supply. The ADS8343EB/2K5 is a 16-bit, 4-channel SAR ADC with a serial interface that supports both single-supply (+2.7V to +5V) and bipolar (±2.5V) operation, and it is supplied in a 20-lead SSOP package in tape-and-reel form (2K5 = 2,500 units per reel). Both are 16-bit, 4-channel SAR converters, but the ADS8343 offers additional input range flexibility and a different package option.
Are the ADS8341E and ADS8343EB/2K5 pin-compatible?
No. The ADS8341E is offered in a 16-lead SSOP package, while the ADS8343EB/2K5 is offered in a 20-lead SSOP package. Because the package sizes and pin counts differ, they are not pin-compatible and cannot be used as drop-in replacements on the same PCB footprint.
Do both devices have the same resolution and channel count?
Yes. Both the ADS8341E and ADS8343EB/2K5 are 16-bit successive-approximation ADCs with 4 single-ended input channels (or 2 differential channels). Their resolution and channel configuration are equivalent, so the primary selection differences lie in package, input range flexibility, and supply configuration.
What supply voltage ranges do the ADS8341E and ADS8343EB/2K5 support?
The ADS8341E operates from a single supply of +2.7V to +5V. The ADS8343EB/2K5 also supports a single supply of +2.7V to +5V, and additionally supports bipolar ±2.5V operation, giving it greater flexibility for applications requiring bipolar input ranges.
What is the significance of the "2K5" suffix on the ADS8343EB/2K5?
The "2K5" suffix indicates tape-and-reel packaging with 2,500 units per reel. This is a packaging and ordering quantity designation, not a change to the electrical or functional specifications of the ADS8343 device itself.
Can the ADS8343EB/2K5 be used as a replacement for the ADS8341E in an existing design?
Not as a direct drop-in replacement. Although both are 16-bit, 4-channel SAR ADCs, the ADS8343EB/2K5 uses a 20-lead SSOP package versus the 16-lead SSOP of the ADS8341E, so the PCB footprint and pinout differ. A redesign of the board layout and verification of the interface and input configuration against the respective datasheets would be required.
Do both converters use a serial interface for communication?
Yes. Both the ADS8341E and ADS8343EB/2K5 provide a serial digital interface for communication with a host controller, consistent with their SAR ADC architecture. Designers should consult the respective manufacturer datasheets for the exact interface timing and protocol details.