Part A
ADS1100A0IDBVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 1300 PCS
- Package
- SOT-23-6
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS1100A0IDBVR and ADS1100A3IDBVR are functionally interchangeable 16-bit delta-sigma ADCs sharing the same SOT-23-6 package, I2C interface, and pinout; the only distinction is the factory-programmed I2C slave address, so the A3 variant can directly replace the A0 variant provided the system firmware is updated to communicate with the new address.
Resolution and ADC Architecture
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
I2C Slave Address
Validation required
Parts at a glance
Part B
ADS1100A3IDBVR
Texas Instruments
- Lifecycle
- Active
- Stock
- 493 PCS
- Package
- SOT-23-6
- Series
- Acquisition de données - Convertisseur analogique - numérique (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 | ADS1100A3IDBVR | 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 support the same gain set. |
| 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 | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Supply range determines compatibility with 3.3 V and 5 V systems; both are identical. |
| Interface | I2C | I2C | The communication interface must match the host bus; both use I2C, so they are interchangeable on the bus. |
| Package | SOT-23-6 | SOT-23-6 | Package footprint must match the PCB layout; identical SOT-23-6 means drop-in compatibility. |
| Operating temperature range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range defines the environments where the part can be used; both are identical. |
| I2C address | Fixed (1001000) | Fixed (1001000) | A fixed I2C address limits bus sharing; both share the same address, so neither offers address flexibility. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS1100A0IDBVR | ADS1100A3IDBVR |
|---|---|---|
| Supplier | - | Texas Instruments,Rochester Electronics, LLC |
| 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 is the main difference between the ADS1100A0IDBVR and ADS1100A3IDBVR?
The primary difference is the factory-programmed I2C slave address. The ADS1100A0IDBVR is set to address 1001000, while the ADS1100A3IDBVR is set to address 1001011. Both are otherwise identical 16-bit, self-calibrating, delta-sigma analog-to-digital converters in a SOT-23-6 package.
Are the ADS1100A0IDBVR and ADS1100A3IDBVR pin-to-pin and package compatible?
Yes. Both devices are offered in the same 6-pin SOT-23 (DBV) package with identical pin functions and footprint, allowing them to share the same PCB land pattern. The only functional distinction is the I2C address.
Can the ADS1100A0IDBVR and ADS1100A3IDBVR be used on the same I2C bus simultaneously?
Yes. Because they have different fixed I2C slave addresses (1001000 vs. 1001011), both devices can coexist on the same two-wire bus without address conflict, provided bus capacitance and pull-up sizing are within I2C specification limits.
What are the key shared specifications of the ADS1100A0IDBVR and ADS1100A3IDBVR?
Both are 16-bit delta-sigma ADCs with differential inputs, on-chip programmable gain amplifier (PGA) with gains of 1, 2, 4, and 8, internal oscillator, and I2C interface. They operate from a single 2.7 V to 5.5 V supply and support data rates of 8, 16, 32, and 128 SPS.
Do the ADS1100A0IDBVR and ADS1100A3IDBVR differ in accuracy or resolution?
No. Both variants share the same 16-bit resolution, integral nonlinearity, offset, and gain specifications as defined in the ADS1100 datasheet. The A0 and A3 suffixes denote only the I2C address option, not performance grade.
Which applications benefit from selecting the ADS1100A3IDBVR over the ADS1100A0IDBVR?
The ADS1100A3IDBVR is selected when its I2C address (1001011) is required to avoid conflicts with other devices on the bus, or to allow multiple ADS1100 converters to be addressed individually. The ADS1100A0IDBVR is used when address 1001000 is appropriate for the system.
Are the ADS1100A0IDBVR and ADS1100A3IDBVR interchangeable in an existing design?
They are hardware-interchangeable in the same footprint, but firmware must be updated to use the correct I2C slave address. Substitution without adjusting the software address will result in communication failure.