Part A
ADS1110A1IDBVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 4419 PCS
- Package
- SOT-23-6
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS1110A1IDBVR and ADS1110A3IDBVR 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 serve as a drop-in replacement for the A1 variant provided the system firmware is updated to target the alternate address and no address conflict exists on the bus.
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
ADS1110A3IDBVR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 9930 PCS
- Package
- SOT-23-6
- Series
- Data Acquisition - Analog to Digital Converters (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 | ADS1110A1IDBVR | ADS1110A3IDBVR | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 16 bit | Both devices provide 16-bit resolution, so measurement precision is equivalent. |
| Programmable Gain Amplifier (PGA) Settings | 1, 2, 4, 8 | 1, 2, 4, 8 | Identical gain options allow the same input voltage ranges to be accommodated. |
| Full-Scale Input Range (at gain = 1) | ±2.048 V | ±2.048 V | Same full-scale range means the same maximum measurable differential input voltage. |
| Data Rate | 15 SPS to 240 SPS (selectable) | 15 SPS to 240 SPS (selectable) | Identical selectable data rates support the same sampling speed requirements. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Same supply range allows operation from the same power rails. |
| Interface | I2C (2-wire) | I2C (2-wire) | Identical I2C interface ensures the same bus compatibility and addressing scheme. |
| Internal Reference Voltage | 2.048 V | 2.048 V | Same internal reference yields the same absolute accuracy and full-scale calibration. |
| Package | SOT-23-6 | SOT-23-6 | Same package footprint allows drop-in PCB replacement without layout changes. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical temperature range supports the same environmental operating conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS1110A1IDBVR | ADS1110A3IDBVR |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 240 | 240 |
| 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 | Internal | Internal |
| 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 ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What is the difference between the ADS1110A1IDBVR and the ADS1110A3IDBVR?
The ADS1110A1IDBVR and ADS1110A3IDBVR are both 16-bit delta-sigma ADCs with an internal reference, PGA, and I2C interface in a SOT-23-6 package. The primary difference is the factory-programmed I2C slave address: the A1 variant uses address 1001000 (0x48), while the A3 variant uses address 1001001 (0x49). This allows both devices to coexist on the same I2C bus without address conflict.
Are the ADS1110A1IDBVR and ADS1110A3IDBVR functionally identical apart from the I2C address?
Yes. Both variants share the same 16-bit resolution, programmable gain amplifier settings (1, 2, 4, 8), data rates of 15, 30, 60, and 240 SPS, internal 2.048 V reference, and single-ended input configuration. The only documented difference between the A1 and A3 order codes is the I2C slave address.
Can the ADS1110A1IDBVR and ADS1110A3IDBVR be used together on the same I2C bus?
Yes. Because the A1 variant responds to I2C address 0x48 and the A3 variant responds to 0x49, both devices can be connected to the same I2C bus and addressed independently by the host controller.
What is the package and pinout of the ADS1110A1IDBVR and ADS1110A3IDBVR?
Both devices are supplied in a 6-pin SOT-23-6 package (DBV). The pinout is identical across both variants: VDD, GND, SCL, SDA, VIN+, and VIN-. The package and pinout are the same, so PCB layout can be shared between the two order codes.
What supply voltage and input range do the ADS1110A1IDBVR and ADS1110A3IDBVR support?
Both variants operate from a single supply of 2.7 V to 5.5 V. With the internal 2.048 V reference and PGA settings of 1, 2, 4, or 8, the corresponding full-scale input ranges are ±2.048 V, ±1.024 V, ±0.512 V, and ±0.256 V.
Are the ADS1110A1IDBVR and ADS1110A3IDBVR drop-in replacements for each other in an existing design?
They are pin-compatible and share the same package, but they are not direct drop-in replacements unless the host firmware is updated to use the correct I2C slave address. The A1 uses 0x48 and the A3 uses 0x49, so firmware must match the installed variant.
What data rates and resolution do the ADS1110A1IDBVR and ADS1110A3IDBVR provide?
Both variants provide 16-bit resolution with selectable data rates of 15, 30, 60, and 240 samples per second. The resolution and data rate options are identical between the A1 and A3 order codes.