Part A
AD4115BCPZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6823 Stückzahl
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Not a drop-in replacement
The AD4115BCPZ and AD4110-1BCPZ-RL are not functionally interchangeable. The AD4115BCPZ is a 24-bit sigma-delta ADC with ±10 V inputs and 8 differential or 16 single-ended channels, while the AD4110-1BCPZ-RL is a 24-bit sigma-delta ADC with an integrated programmable gain amplifier supporting ±10 V inputs and a single differential channel. Their channel count, input architecture, and package footprint differ fundamentally, requiring complete circuit redesign for substitution.
Different channel count
Different input architecture
Different package footprint
Different interface configuration
Parts at a glance
Part B
AD4110-1BCPZ-RL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2132 Stückzahl
- Package
- VFQFN-40
- Series
- Datenerfassung mit dem Analog Front End (AFE)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD4115BCPZ | AD4110-1BCPZ-RL | Why it matters |
|---|---|---|---|
| Resolution | 24 bit | 24 bit | Both are 24-bit sigma-delta ADCs, so resolution is equivalent for precision measurement applications. |
| Number of Input Channels | 8 single-ended / 4 differential | 1 differential (with PGA) | Channel count determines how many signals can be measured; the AD4115 supports multi-channel systems while the AD4110-1 is a single-channel signal-conditioning ADC. |
| Input Type | Voltage and current inputs | Universal analog input (voltage, current, RTD, thermocouple) | Input flexibility affects sensor compatibility; the AD4110-1 integrates a PGA and supports direct sensor connection, while the AD4115 targets voltage/current industrial inputs. |
| Integrated PGA | No | Yes | An integrated PGA allows direct amplification of small sensor signals, simplifying the signal chain and improving low-level measurement accuracy. |
| Maximum Sample Rate | 125 kSPS | 125 kSPS | Sample rate determines the bandwidth of signals that can be captured; both devices offer similar throughput for industrial control loops. |
| Interface | SPI | SPI | A compatible SPI interface allows similar host microcontroller connections, aiding drop-in replacement in digital communication terms. |
| Supply Voltage | 2.7 V to 5.5 V (AVDD), 2.7 V to 5.5 V (DVDD) | 2.7 V to 5.5 V (AVDD), 2.7 V to 5.5 V (DVDD) | Matching supply ranges means both can operate from the same system rails, simplifying power supply design. |
| Package | 40-lead LFCSP (6 mm x 6 mm) | 48-lead LFCSP (7 mm x 7 mm) | Package footprint and pin count affect PCB layout and thermal performance; they are not pin-compatible, so a redesign is required for substitution. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Industrial temperature range ensures reliable operation in harsh environments; both meet the same grade. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD4115BCPZ | AD4110-1BCPZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Number of Bits | 24 | 24 |
| Number of Channels | - | 1 |
| Voltage - Supply, Analog | 4.5V ~ 5.5V | 4.5V ~ 5.5V, 24V ~ 40V |
| Voltage - Supply, Digital | 2V ~ 5.5V | 4.5V ~ 5.5V, 24V ~ 40V |
| Mounting Type | Surface Mount | Surface Mount |
| Base Product Number | AD4115 | - |
| Sampling Rate (Per Second) | 125k | - |
| Number of Inputs | 8, 16 | - |
| Input Type | Differential, Single Ended | - |
| Data Interface | DSP, MICROWIRE™, QSPI™, and SPI™ | - |
| Configuration | MUX-ADC | - |
| Ratio - S / H: ADC | 0:1 | - |
| Number of A / D Converters | 1 | - |
| Architecture | Sigma-Delta | - |
| Reference Type | External, Internal | - |
| Features | Temperature Sensor | - |
| Operating Temperature | -40°C ~ 105°C | - |
| Packaging | Tray | - |
Frequently asked questions
What are the primary functional differences between the AD4115BCPZ and the AD4110-1BCPZ-RL?
The AD4115BCPZ is a 24-bit, 125 kSPS, low-power, sigma-delta analog-to-digital converter (ADC) with ±10 V inputs and integrated analog front end (AFE). The AD4110-1BCPZ-RL is a 24-bit, 31.25 kSPS, sigma-delta ADC with a fully differential programmable gain amplifier (PGA) and ±10 V input range. The AD4115 offers a higher maximum output data rate (125 kSPS vs. 31.25 kSPS), while the AD4110-1 integrates a PGA with gains from 0.2 to 16, whereas the AD4115 has fixed input ranges.
Are the AD4115BCPZ and AD4110-1BCPZ-RL pin-compatible or package-compatible?
No. The AD4115BCPZ is supplied in a 40-lead LFCSP (6 mm × 6 mm) package. The AD4110-1BCPZ-RL is supplied in a 48-lead LFCSP (7 mm × 7 mm) package. The different package sizes, pin counts, and pin functions prevent direct PCB drop-in replacement without a redesign.
Which part offers a higher maximum output data rate?
The AD4115BCPZ supports a maximum output data rate of 125 kSPS. The AD4110-1BCPZ-RL supports a maximum output data rate of 31.25 kSPS. Therefore, the AD4115BCPZ provides a higher maximum throughput for applications requiring faster sampling.
Do both devices include an integrated programmable gain amplifier (PGA)?
No. The AD4110-1BCPZ-RL includes an integrated PGA with selectable gains of 0.2, 0.25, 0.4, 0.5, 0.8, 1, 1.6, 2, 2.5, 4, 5, 8, 10, and 16. The AD4115BCPZ does not include a PGA; it provides fixed input voltage ranges of ±10 V, ±5 V, ±2.5 V, and 0 V to 10 V.
What are the input voltage ranges for each device?
The AD4115BCPZ supports bipolar input ranges of ±10 V, ±5 V, and ±2.5 V, as well as a unipolar 0 V to 10 V range. The AD4110-1BCPZ-RL supports a bipolar ±10 V input range with the integrated PGA allowing attenuation or gain within that range. Both devices are designed for industrial signal levels.
Which device is better suited for low-power or portable applications?
The AD4115BCPZ is specified as a low-power ADC, with typical supply current and power consumption optimized for power-sensitive designs. The AD4110-1BCPZ-RL includes a PGA and additional signal conditioning, which typically results in higher power consumption. For strictly low-power designs, the AD4115BCPZ is the more appropriate choice based on published specifications.
Can the AD4115BCPZ and AD4110-1BCPZ-RL operate from the same supply voltages?
Both devices use an analog supply (AVDD) of 4.5 V to 5.5 V and a digital supply (DVDD) of 2.7 V to 5.5 V, with an additional negative analog supply (AVSS) of -4.5 V to -5.5 V for bipolar operation. However, the AD4110-1BCPZ-RL also requires a separate PGA supply (AVDD2) and has different supply current requirements. Always verify the exact supply configuration in the respective datasheets.
Are both devices suitable for industrial temperature ranges?
Yes. Both the AD4115BCPZ and the AD4110-1BCPZ-RL are specified for the industrial temperature range of -40°C to +105°C (or -40°C to +125°C depending on the exact grade). Designers should confirm the specific temperature grade from the ordering guide in the manufacturer datasheet.