Part A
ADS1100A1IDBVR
德州儀器
- Lifecycle
- Active
- Stock
- 1553 件
- Package
- SOT-23-6
- Series
- 資料獲取-模數轉換器（ADC）
Replacement verdict
Compatible functional replacement candidate
The ADS1100A1IDBVR and ADS1100A4IDBVRG4 are functionally interchangeable 16-bit delta-sigma ADCs sharing the same I2C interface, SOT-23-6 package, and pinout, with the only meaningful distinction being the factory-programmed I2C slave address and the G4 green-material suffix. Designers can substitute one for the other provided the target I2C address is acceptable and the G4 environmental designation is not a hard requirement.
Resolution and ADC Architecture
High match
Package and Pinout
High match
I2C Slave Address
Not compatible
Material and Compliance Variant
Validation required
Parts at a glance
Part B
ADS1100A4IDBVRG4
德州儀器
- Lifecycle
- Active
- Stock
- 3941 件
- Package
- SOT-23-6
- 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 | ADS1100A1IDBVR | ADS1100A4IDBVRG4 | Why it matters |
|---|---|---|---|
| Resolution (bits) | 16 | 16 | Both are 16-bit delta-sigma ADCs, so resolution is identical and not a differentiator. |
| Programmable Gain Amplifier (PGA) settings | 1, 2, 4, 8 | 1, 2, 4, 8 | PGA range determines the smallest full-scale input voltage and thus the effective LSB size for low-level signals. |
| Data rate (SPS) | 8, 16, 32, 128 | 8, 16, 32, 128 | Sample rate affects noise performance and throughput; identical rates mean equivalent speed/noise trade-off options. |
| Supply voltage range (V) | 2.7 to 5.5 | 2.7 to 5.5 | Supply range determines compatibility with 3.3 V and 5 V systems; identical here. |
| Interface | I2C | I2C | Both use I2C, so bus compatibility and addressing behavior are the same. |
| Package | SOT-23-6 | SOT-23-6 | Package footprint and pinout must match for drop-in substitution; both are SOT-23-6. |
| Operating temperature range (°C) | -40 to 85 | -40 to 85 | Temperature range affects suitability for industrial vs. commercial environments; identical here. |
| Input type | Differential | Differential | Differential inputs improve common-mode rejection; both share this architecture. |
| Internal reference | Yes (supply-referenced) | Yes (supply-referenced) | On-chip reference simplifies design and affects absolute accuracy; both use supply-referenced operation. |
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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 | ADS1100A1IDBVR | ADS1100A4IDBVRG4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 128 | 128 |
| Number of Inputs | 1 | 1 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | I²C | I²C |
| Configuration | PGA-ADC | PGA-ADC |
| Number of A/D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | Supply | Supply |
| Voltage - Supply, Analog | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Features | PGA, Selectable Address | PGA, Selectable Address |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS1100A1IDBVR and the ADS1100A4IDBVRG4?
Both devices are 16-bit, single-channel, delta-sigma analog-to-digital converters from Texas Instruments in a SOT-23-6 package. The primary difference is the factory-programmed PGA gain setting: the ADS1100A1IDBVR is configured for a gain of 1, while the ADS1100A4IDBVRG4 is configured for a gain of 8. The "G4" suffix on the ADS1100A4IDBVRG4 denotes a green (Pb-free/RoHS-compliant) manufacturing designation.
Are the ADS1100A1IDBVR and ADS1100A4IDBVRG4 pin-compatible?
Yes. Both parts share the same SOT-23-6 (DBV) package and identical pinout: VDD, GND, VIN+ (A0), VIN- (A1), SDA, and SCL. They can occupy the same PCB land pattern, but the different PGA gain settings must be accounted for in firmware and signal scaling.
What is the resolution and data rate of these ADCs?
Both the ADS1100A1IDBVR and ADS1100A4IDBVRG4 provide 16-bit resolution with a programmable output data rate of 8, 16, 32, or 128 samples per second (SPS), selectable via the I2C interface.
What PGA gain is available on each device?
The ADS1100A1IDBVR is factory-set to a PGA gain of 1, while the ADS1100A4IDBVRG4 is factory-set to a PGA gain of 8. The gain is fixed at the factory and cannot be changed by the user; the gain setting is encoded in the part number suffix.
What supply voltage and interface do these converters support?
Both devices operate from a single supply of 2.7 V to 5.5 V and communicate over an I2C-compatible serial interface supporting standard and fast modes (up to 400 kHz).
Can the ADS1100A1IDBVR and ADS1100A4IDBVRG4 be used interchangeably in an existing design?
They are pin-compatible, but they are not functionally interchangeable without design review. Because the PGA gain differs (1 vs. 8), the input voltage range and the digital output scaling differ. Firmware and signal-conditioning calculations must be adjusted accordingly before substitution.
What is the significance of the "G4" suffix on the ADS1100A4IDBVRG4?
The "G4" suffix indicates a green, Pb-free (RoHS-compliant) manufacturing designation per Texas Instruments' nomenclature. The base ADS1100A1IDBVR is also available in Pb-free/RoHS-compliant packaging, but the G4 suffix explicitly denotes the green molding compound and lead-frame finish.
What are typical applications for these ADCs?
These 16-bit delta-sigma ADCs are suited for low-frequency, high-resolution sensing such as portable instrumentation, temperature and pressure sensors, battery monitoring, and industrial process control where a small SOT-23-6 footprint and I2C interface are advantageous.