Part A
ADS8320E/2K5
德州儀器
- Lifecycle
- Active
- Stock
- 4183 件
- Package
- VSSOP-8
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The ADS8320E/2K5G4 is a functionally equivalent variant of the ADS8320E/2K5, differing only in the G4 lead-finish/Green designation while sharing identical core specifications. Both parts are interchangeable for design, qualification, and procurement purposes, with the G4 suffix reflecting RoHS-compliant green molding compound rather than any change in electrical or functional behavior.
Resolution and Architecture
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
Environmental Compliance
High match
Parts at a glance
Part B
ADS8320E/2K5G4
德州儀器
- Lifecycle
- Active
- Stock
- 4810 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 | ADS8320E/2K5 | ADS8320E/2K5G4 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Determines the number of discrete levels the ADC can represent; both parts offer identical conversion precision. |
| Sampling Rate | 100 kSPS | 100 kSPS | Sets the maximum throughput for the converter; identical rates mean the same signal bandwidth can be captured. |
| Number of Input Channels | 1 (single-ended) | 1 (single-ended) | Defines how many analog signals can be measured; both are single-channel devices, so system architecture is unaffected. |
| Interface Type | SPI | SPI | Determines the digital communication protocol with the host; identical SPI interface ensures drop-in compatibility. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the operating voltage range; identical ranges allow the same power supply design to be used. |
| Package / Case | VSSOP-8 (MSOP-8) | VSSOP-8 (MSOP-8) | Determines PCB footprint and assembly; identical packages allow the same board layout. |
| 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. |
| Reference Type | External | External | Indicates whether a voltage reference is integrated; both require an external reference, so the same reference circuit applies. |
| Packaging / Ordering Suffix | Tape & Reel (2K5) | Tape & Reel (2K5G4, green/RoHS variant) | The G4 suffix denotes a lead-free/RoHS-compliant variant; functionally equivalent but relevant for compliance and inventory management. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS8320E/2K5 | ADS8320E/2K5G4 |
|---|---|---|
| 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 is the difference between the ADS8320E/2K5 and the ADS8320E/2K5G4?
The ADS8320E/2K5 and ADS8320E/2K5G4 are functionally identical 16-bit, 100-kSPS micropower sampling analog-to-digital converters from Texas Instruments. The "G4" suffix denotes a lead-free (RoHS-compliant, Green) package variant, while the base part number without the suffix may correspond to an older leaded (non-RoHS) orderable. Both are supplied in the same 8-pin VSSOP (DGK) package and are specified identically in the datasheet.
Are the ADS8320E/2K5 and ADS8320E/2K5G4 electrically and functionally interchangeable?
Yes. Both orderable part numbers share the same silicon die, the same 16-bit SAR architecture, the same 100-kSPS maximum throughput, the same 2.7 V to 5.25 V supply range, and the same SPI-compatible serial interface. The only documented difference is the package finish (lead-free/G4 vs. the non-G4 variant), so they are interchangeable in circuit design provided the assembly process accepts the respective finish.
What are the key specifications of the ADS8320E/2K5 and ADS8320E/2K5G4?
Both devices are 16-bit successive-approximation ADCs with a maximum sampling rate of 100 kSPS, a single 2.7 V to 5.25 V supply, and a typical power consumption of 1.8 mW at 100 kSPS and 5 V. They feature a pseudo-differential input, an SPI/QSPI/Microwire-compatible serial interface, and are offered in an 8-pin VSSOP (DGK) package over the -40 °C to +85 °C temperature range.
Does the "G4" suffix affect the electrical performance or accuracy of the ADS8320E/2K5G4?
No. The G4 suffix is a Texas Instruments ordering designator for lead-free (RoHS/Green) packaging and does not change the electrical specifications. Parameters such as INL, DNL, offset error, gain error, SINAD, and THD are identical between the ADS8320E/2K5 and ADS8320E/2K5G4 as documented in the shared datasheet.
Can the ADS8320E/2K5G4 be used as a drop-in replacement for the ADS8320E/2K5?
Yes, from a footprint and electrical standpoint the two are drop-in compatible because both use the same 8-pin VSSOP (DGK) package with identical pin assignments. The substitution is appropriate when the assembly is qualified for lead-free (RoHS) processing; designs requiring a specific non-G4 finish should verify the orderable status with the manufacturer or authorized distributor.
What is the "2K5" designation in the ADS8320E/2K5 and ADS8320E/2K5G4 part numbers?
The "2K5" suffix indicates the tape-and-reel packing quantity of 2,500 units per reel. Both the ADS8320E/2K5 and ADS8320E/2K5G4 are supplied in this 2,500-piece reel format, which is intended for automated surface-mount assembly.
Which applications are the ADS8320E/2K5 and ADS8320E/2K5G4 suited for?
Both parts target battery-powered and portable instrumentation, data acquisition systems, industrial process control, and medical instrumentation where a 16-bit, low-power, 100-kSPS ADC with a serial interface is required. Their low supply current and wide 2.7 V to 5.25 V supply range make them suitable for systems that must operate from a single low-voltage rail.
How should the ADS8320E/2K5 and ADS8320E/2K5G4 be ordered to ensure RoHS compliance?
To ensure a lead-free, RoHS-compliant part, order the ADS8320E/2K5G4, which carries the G4 (Green) designation. Confirm the RoHS status and orderable part number against the current Texas Instruments datasheet or an authorized distributor listing before finalizing the bill of materials, since orderable suffixes and availability can change.