Part A
ADS8320EB/2K5
德州儀器
- Lifecycle
- Active
- Stock
- 3123 件
- Package
- VSSOP-8
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The ADS8320EB/2K5 and ADS8320EB/250G4 are functionally equivalent, sharing the same core 16-bit SAR ADC architecture, package, and electrical characteristics; the only distinction is tape-and-reel packaging quantity, making them interchangeable for design and production purposes.
Resolution and Architecture
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
Packaging Quantity
High match
Parts at a glance
Part B
ADS8320EB/250G4
德州儀器
- Lifecycle
- Active
- Stock
- 3201 件
- Package
- TSSOP-8
- Series
- 資料獲取-模數轉換器（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 | ADS8320EB/250G4 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Determines the number of discrete levels the ADC can represent; identical resolution means equivalent measurement precision. |
| Sampling Rate | 100 kSPS | 100 kSPS | Sets the maximum conversion throughput; matching rates ensure the parts are interchangeable for the same signal bandwidth. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Defines how many analog signals can be sampled; identical channel configuration supports the same system architecture. |
| Interface Type | SPI (serial) | SPI (serial) | Determines compatibility with the host microcontroller or DSP; matching interfaces allow drop-in replacement. |
| Supply Voltage | 2.7 V to 5.25 V | 2.7 V to 5.25 V | Defines the operating power range; identical ranges ensure the same power supply design works for both parts. |
| Package / Case | 8-VSSOP | 8-VSSOP | Determines PCB footprint and assembly; matching packages allow the same board layout to be used. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Specifies the environmental range for reliable operation; identical ranges suit the same application environments. |
| Packaging / Reel Quantity | Tape & Reel, 2500 units | Tape & Reel, 250 units | Affects manufacturing order quantities and inventory handling; the reel size differs, which matters for production planning and minimum order quantities. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS8320EB/2K5 | ADS8320EB/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 ADS8320EB/2K5 and ADS8320EB/250G4?
Both are orderable part numbers for the Texas Instruments ADS8320, a 16-bit, micropower, successive-approximation analog-to-digital converter (ADC) in an 8-pin VSSOP (DGK) package. The ADS8320EB/2K5 and ADS8320EB/250G4 differ only in packaging format and ordering quantity, not in electrical specifications.
Are the ADS8320EB/2K5 and ADS8320EB/250G4 electrically identical?
Yes. Both part numbers refer to the same ADS8320EB device (16-bit SAR ADC, 8-pin VSSOP, specified performance grade). The suffix differences (/2K5 vs /250G4) denote tape-and-reel quantity and packaging/ordering conventions, not different silicon or specifications.
What is the difference between the /2K5 and /250G4 suffixes?
The suffixes indicate the reel/ordering quantity and packaging format used by Texas Instruments. /2K5 corresponds to a 2,500-unit reel quantity, while /250G4 corresponds to a 250-unit reel quantity with the G4 lead-free/RoHS-compliant designation. Both are the same ADS8320EB converter die and package.
Can the ADS8320EB/2K5 and ADS8320EB/250G4 be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because both are the same ADS8320EB device in the same 8-pin VSSOP package. The only practical difference is the reel quantity and packaging designation, which affects procurement and manufacturing handling rather than circuit performance.
What are the key specifications of the ADS8320EB?
The ADS8320EB is a 16-bit SAR ADC with a serial (SPI-compatible) interface, operating from a single 2.7 V to 5.5 V supply, with micropower operation and a maximum throughput of 100 kSPS. It is offered in an 8-pin VSSOP package. Designers should confirm exact limits against the official TI datasheet for the ADS8320.
Does the G4 suffix on ADS8320EB/250G4 indicate a different device?
No. The G4 suffix is a Texas Instruments ordering designation indicating lead-free (Pb-free) and RoHS-compliant construction. It does not change the ADC's electrical function or performance; the device remains an ADS8320EB 16-bit SAR ADC in the 8-pin VSSOP package.
Which part number should be selected for high-volume production?
For high-volume production, ADS8320EB/2K5 is typically preferred because it is supplied on a 2,500-unit reel, reducing reel-change frequency on automated placement equipment. ADS8320EB/250G4, with a 250-unit reel, is better suited to lower-volume builds, prototyping, or engineering evaluations.