Part A
ADS8320E/2K5
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 4183 個数
- Package
- VSSOP-8
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS8320EB/250G4 is a functionally compatible replacement candidate for the ADS8320E/2K5, sharing identical core converter specifications including resolution, sampling rate, interface, and package. The primary distinction lies in the ordering and packaging format, which requires validation against the specific production and inventory requirements of the target application.
Resolution and Sampling Rate
High match
Interface Type
High match
Package Type
High match
Ordering and Packaging Format
Validation required
Parts at a glance
Part B
ADS8320EB/250G4
STマイクロエレクトロニクス
- Lifecycle
- Active
- Stock
- 3201 個数
- Package
- TSSOP-8
- Series
- データ取得 - アナログ/デジタルコンバータ (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 | ADS8320E/2K5 | ADS8320EB/250G4 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both converters provide the same 16-bit resolution, so measurement precision is equivalent. |
| Sampling Rate | 100 kSPS | 100 kSPS | Identical maximum throughput means either part supports the same signal bandwidth and timing budget. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Same single-channel architecture allows direct substitution in single-sensor acquisition designs. |
| Interface Type | SPI (serial) | SPI (serial) | Matching serial interface ensures the same host controller firmware and pin connections can be reused. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Equivalent supply range means both parts operate in the same system power rails without redesign. |
| Package / Mounting | 8-VSSOP, surface mount | 8-VSSOP, surface mount | Same package and footprint allow drop-in board replacement without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature ratings confirm both parts suit the same environmental conditions. |
| Packaging / Ordering Quantity | Tape and reel, 2500 units | Tape and reel, 250 units | Different reel quantities affect minimum order size and production line replenishment planning. |
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 | ADS8320E/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 | 5V | 5V |
| Voltage - Supply, Digital | 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS8320E/2K5 and ADS8320EB/250G4?
Both are 16-bit, 100-kSPS micropower sampling analog-to-digital converters from Texas Instruments in an 8-pin VSSOP (DGK) package. The primary differences are ordering format and grade: the ADS8320E/2K5 is supplied in a 2,500-unit tape-and-reel, while the ADS8320EB/250G4 is supplied in a 250-unit tape-and-reel and carries the "G4" suffix denoting green/RoHS-compliant molding compound. The "B" grade in ADS8320EB indicates a tighter specified performance grade per the datasheet.
Are the ADS8320E/2K5 and ADS8320EB/250G4 functionally interchangeable?
Yes, both devices share the same core 16-bit SAR ADC architecture, pinout, 8-pin VSSOP package, and 2.7-V to 5.25-V supply range. They are functionally interchangeable in a given design, but the "B" grade of the ADS8320EB/250G4 may offer tighter guaranteed specifications, so the design's accuracy budget should be verified against the specific grade's datasheet limits.
What is the resolution and sampling rate of these ADCs?
Both the ADS8320E/2K5 and ADS8320EB/250G4 are 16-bit successive-approximation register (SAR) analog-to-digital converters with a maximum sampling rate of 100 kSPS.
What supply voltage range do these devices support?
Both parts operate from a single supply of 2.7 V to 5.25 V, making them suitable for low-power, battery-operated, and portable instrumentation applications.
What is the difference between the "E" and "EB" suffixes?
The "E" and "EB" suffixes denote the device grade. The ADS8320E/2K5 is the standard grade, while the ADS8320EB/250G4 is the "B" grade, which the manufacturer specifies with tighter performance limits. Designers should consult the respective datasheet grade tables to confirm which parameters are guaranteed for each variant.
What does the "G4" suffix on the ADS8320EB/250G4 indicate?
The "G4" suffix is a Texas Instruments ordering designator indicating the device is manufactured with green (RoHS-compliant, lead-free) molding compound and is qualified to the corresponding environmental standard. The ADS8320E/2K5 does not carry this suffix in its part number.
How do the packaging quantities differ between the two orderable part numbers?
The ADS8320E/2K5 is supplied in a 2,500-unit tape-and-reel, while the ADS8320EB/250G4 is supplied in a 250-unit tape-and-reel. Both use the same 8-pin VSSOP (DGK) package, so PCB footprint and assembly are identical.
What interface do these ADCs use to communicate with a host processor?
Both devices provide a serial SPI-compatible interface for data output and control, allowing direct connection to most microcontrollers and DSPs. The interface supports the standard serial clock, chip-select, and data-out signals required for SAR ADC operation.