Part A
ADS1100A0IDBVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 1300 PCS
- Package
- SOT-23-6
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS1100A3IDBVRG4 is a functionally compatible replacement candidate for the ADS1100A0IDBVR, sharing the same 16-bit delta-sigma ADC architecture, I2C interface, SOT-23-6 package, and pinout. The only material difference is the factory-programmed I2C slave address, which must be accounted for in firmware and bus addressing before substitution.
Resolution and ADC Architecture
High match
Package and Pinout
High match
Supply Voltage Range
High match
I2C Slave Address
Validation required
Parts at a glance
Part B
ADS1100A3IDBVRG4
Texas Instruments
- Lifecycle
- Active
- Stock
- 4692 PCS
- Package
- SOT-23-6
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (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 | ADS1100A0IDBVR | ADS1100A3IDBVRG4 | 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 input signal that can be resolved; both offer the same gain options. |
| Data rate (SPS) | 8, 16, 32, 128 | 8, 16, 32, 128 | Sample rate affects throughput and noise trade-off; identical options mean equivalent speed capability. |
| Supply voltage range (V) | 2.7 to 5.5 | 2.7 to 5.5 | Supply range determines compatibility with system rails; both support the same 2.7–5.5 V span. |
| Interface | I2C | I2C | The digital interface must match the host bus; both use I2C, so they are drop-in compatible on the bus. |
| Package / Mounting | SOT-23-6, Surface Mount | SOT-23-6, Surface Mount | Package and mounting determine PCB footprint compatibility; both are SOT-23-6 surface-mount devices. |
| Operating temperature range (°C) | -40 to 85 | -40 to 85 | Temperature range affects suitability for industrial vs. commercial environments; both cover the same industrial range. |
| Input type | Differential | Differential | Differential inputs improve noise rejection and common-mode performance; both are differential-input devices. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS1100A0IDBVR | ADS1100A3IDBVRG4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Obsolete |
| 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 | PGA, Selectable Address |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS1100A0IDBVR and ADS1100A3IDBVRG4?
Both 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 gain configuration: the ADS1100A0IDBVR is factory-configured for a gain of 1, while the ADS1100A3IDBVRG4 is configured for a gain of 8. The "G4" suffix on the ADS1100A3IDBVRG4 denotes a green/RoHS-compliant molding compound, whereas the ADS1100A0IDBVR is the standard (non-G4) variant.
Are the ADS1100A0IDBVR and ADS1100A3IDBVRG4 pin-compatible?
Yes. Both devices share the same SOT-23-6 (DBV) package and identical pinout: VDD, GND, VIN+ (A0), VIN- (A1), SDA, and SCL. They are physically interchangeable on a PCB, but the gain difference must be accounted for in firmware and signal scaling.
What is the resolution and data rate of these ADCs?
Both the ADS1100A0IDBVR and ADS1100A3IDBVRG4 are 16-bit delta-sigma ADCs. They support programmable data rates of 8, 16, 32, and 128 samples per second (SPS), selectable via the I2C interface. Resolution in effective bits depends on the selected data rate and gain setting.
What is the input gain of each variant?
The ADS1100A0IDBVR has a fixed PGA gain of 1, making it suitable for full-scale input signals up to approximately ±VDD. The ADS1100A3IDBVRG4 has a fixed PGA gain of 8, which allows it to resolve smaller differential input signals, such as those from low-output sensors or shunt-based current sensing.
What supply voltage and interface do these devices require?
Both devices operate from a single supply of 2.7 V to 5.5 V and communicate over an I2C-compatible two-wire serial interface (SDA/SCL). The I2C address is fixed, and the devices support standard and fast-mode operation.
Does the G4 suffix on the ADS1100A3IDBVRG4 affect electrical performance?
No. The G4 suffix indicates green (RoHS-compliant, lead-free) packaging and does not change the electrical specifications. The ADS1100A3IDBVRG4 and the non-G4 ADS1100A3IDBVR share the same datasheet parameters; only the package material composition differs.
Can the ADS1100A0IDBVR be replaced by the ADS1100A3IDBVRG4 in an existing design?
Only if the firmware and signal chain are adjusted for the gain difference (1 vs. 8). The pinout and package are identical, but the input full-scale range and LSB size change by a factor of 8, so the digital output codes will differ for the same analog input. The replacement must be validated against the target design's input range and resolution requirements.
What are the typical applications for each gain variant?
The ADS1100A0IDBVR (gain = 1) is typically used for general-purpose sensing where the input signal spans a large portion of the supply rail. The ADS1100A3IDBVRG4 (gain = 8) is typically used for low-level differential signals such as thermocouples, bridge sensors, or low-side current shunts, where amplification before conversion improves effective resolution.