Part A
ADS8320EB/2K5
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 3123 PCS
- Package
- VSSOP-8
- Series
- 데이터 수집 - 아날로그 변환기(ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS8320EB/2K5 and ADS8320E/250G4 are functionally equivalent 16-bit SAR analog-to-digital converters sharing identical core specifications, package, and pinout, differing only in reel or tube packaging quantity. They are interchangeable for design and production purposes, with the primary consideration being inventory packaging format rather than electrical or mechanical compatibility.
Resolution and Sample Rate
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
Packaging Format
Validation required
Parts at a glance
Part B
ADS8320E/250G4
텍사스 인스트루먼트(주)
- Lifecycle
- Active
- Stock
- 6954 PCS
- Package
- TSSOP-8
- Series
- 데이터 수집 - 아날로그 변환기(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 | ADS8320EB/2K5 | ADS8320E/250G4 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both provide the same 16-bit conversion resolution, so measurement precision is equivalent. |
| Sampling Rate | 100 kSPS | 100 kSPS | Identical maximum throughput means timing and signal bandwidth requirements are met equally. |
| Number of Inputs / Channels | 1 single-ended | 1 single-ended | Same single-channel architecture allows direct functional substitution in the signal chain. |
| Input Type | Single-ended | Single-ended | Matching input configuration ensures the same sensor or signal source can be connected. |
| Interface | SPI | SPI | Same serial interface guarantees compatibility with the existing host controller and firmware. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Identical supply range allows the same power rail to be used without redesign. |
| Package / Case | 8-VSSOP | 8-VSSOP | Same package footprint enables drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Equivalent temperature ratings ensure the same environmental operating conditions are supported. |
| Packaging / Ordering Quantity | Tape & Reel, 2500 units | Tube, 250 units | Different packaging formats affect assembly line handling and minimum order quantities, though the die is functionally the same. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS8320EB/2K5 | ADS8320E/250G4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Series | microPOWER™ | microPOWER™ |
| Part Status | Active | Discontinued at Digi-Key |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 100k | 100k |
| Number of Inputs | 1 | 1 |
| Input Type | Pseudo-Differential, Single Ended | Pseudo-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 ~ 3.3V, 5V | 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.3V, 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS8320EB/2K5 and the ADS8320E/250G4?
Both parts are the same ADS8320 16-bit, 100-kSPS micropower sampling analog-to-digital converter from Texas Instruments. The difference is the ordering format: ADS8320EB/2K5 is supplied in a tape-and-reel package (2,500 units per reel) with the EB grade, while ADS8320E/250G4 is supplied in a 250-unit reel with the G4 (green/RoHS-compliant) designation. The core silicon, package type (VSSOP-8), and electrical specifications are identical.
Are the ADS8320EB/2K5 and ADS8320E/250G4 electrically and functionally interchangeable?
Yes. Both variants share the same ADS8320 die, the same 8-pin VSSOP (DGK) package, and the same pinout and electrical specifications, including 16-bit resolution, 100-kSPS throughput, and 2.7-V to 5.25-V supply range. They differ only in reel quantity and the G4 green-material designation, so they are functionally interchangeable in a given design.
What is the difference between the "EB" and "E" grade suffixes on these parts?
The "E" suffix denotes the ADS8320 in the VSSOP-8 (DGK) package. The "EB" designation on ADS8320EB/2K5 reflects the specific orderable configuration (grade and reel), while ADS8320E/250G4 uses the "E" base with the G4 green-compliance suffix. Both are the same ADS8320 converter; the suffixes identify packaging and material-compliance options rather than different performance grades.
What does the "G4" suffix mean on the ADS8320E/250G4?
The G4 suffix is Texas Instruments' designation for green, RoHS-compliant packaging, indicating the device is lead-free and meets the applicable environmental material requirements. The ADS8320EB/2K5 does not carry the G4 suffix in its orderable part number, so designers requiring explicit G4 green-compliance documentation should verify the specific orderable variant against the datasheet and packaging information.
What are the reel quantities for each variant?
The ADS8320EB/2K5 is supplied on a 2,500-unit tape-and-reel. The ADS8320E/250G4 is supplied on a 250-unit reel. Both use tape-and-reel packaging suitable for automated pick-and-place assembly; the choice depends on production volume and inventory handling requirements.
Do both variants share the same package and pinout?
Yes. Both the ADS8320EB/2K5 and ADS8320E/250G4 are offered in the 8-pin VSSOP (DGK) package with identical pin functions, including the analog input, reference, supply, ground, serial clock, data output, and chip-select pins. PCB land patterns and footprint compatibility are therefore the same for both orderable parts.
What are the core performance specifications common to both parts?
Both variants are 16-bit successive-approximation ADCs with a maximum throughput of 100 kSPS, a supply range of 2.7 V to 5.25 V, and a serial SPI-compatible interface. They feature micropower operation and are specified for the same temperature range per the ADS8320 datasheet. Designers should confirm exact parametric limits against the current Texas Instruments datasheet for the specific orderable part number.
Which variant should be selected for a production build?
Selection depends on reel quantity and material-compliance requirements rather than electrical performance. The ADS8320EB/2K5 (2,500-unit reel) suits higher-volume automated assembly, while the ADS8320E/250G4 (250-unit reel, G4 green designation) suits lower-volume runs or designs requiring explicit G4 compliance documentation. Both are the same ADS8320 converter and are functionally equivalent.