Part A
AD4111BCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3288 PCS
- Package
- VFQFN-40
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD4111BCPZ-RL7 and AD4111BCPZ are functionally equivalent single-channel 24-bit sigma-delta ADCs with integrated analog front ends, differing only in packaging format. The AD4111BCPZ-RL7 is supplied in tape-and-reel packaging for automated assembly, while the AD4111BCPZ is supplied in tray packaging. Both share identical die, electrical specifications, and performance characteristics, making them interchangeable for design purposes with appropriate adjustments to procurement and manufacturing handling.
Package Type
High match
Pin Configuration
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD4111BCPZ-RL7
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4417 PCS
- Package
- VFQFN-40
- 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 | AD4111BCPZ-RL7 | AD4111BCPZ | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Identical manufacturer ensures the same design, process, and quality standards for both parts. |
| Series | AD4111 | AD4111 | Same product series indicates identical core architecture and functional family. |
| Package / Case | 40-VFQFN, CSP | 40-VFQFN, CSP | Matching package and footprint allows drop-in replacement on the same PCB layout. |
| Number of Channels | 8 | 8 | Equal channel count ensures the same number of analog inputs can be handled. |
| Resolution | 24 bit | 24 bit | Identical resolution guarantees the same measurement precision and dynamic range. |
| Sampling Rate | 31.25 kSPS | 31.25 kSPS | Same maximum sampling rate supports equivalent signal bandwidth and throughput. |
| Interface Type | SPI | SPI | Identical serial interface ensures compatibility with the same host controller and firmware. |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Same supply range allows use in identical power architectures without redesign. |
| Packaging | Tape & Reel (RL7) | Tray | Different packaging affects assembly line handling and reflow processes, though the die and performance are identical. |
| Moisture Sensitivity Level (MSL) | MSL 3 (168 Hours) | MSL 3 (168 Hours) | MSL determines floor life and bake requirements before soldering; identical MSL simplifies storage and handling. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD4111BCPZ | AD4111BCPZ-RL7 |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 24 | 24 |
| Sampling Rate(Per Second) | 6.2k | 6.2k |
| Number of Inputs | 4, 8 | 4, 8 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | Serial, SPI | Serial, SPI |
| Configuration | MUX-S/H-ADC | MUX-S/H-ADC |
| Ratio - S / H: ADC | 0:1 | 0:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | Sigma-Delta | Sigma-Delta |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 2V ~ 5.5V | 2V ~ 5.5V |
| Voltage - Supply, Digital | 2V ~ 5.5V | 2V ~ 5.5V |
| Features | Internal Oscillator, Temperature Sensor | Internal Oscillator, Temperature Sensor |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What is the difference between AD4111BCPZ-RL7 and AD4111BCPZ?
The AD4111BCPZ and AD4111BCPZ-RL7 are the same Analog Devices AD4111 single-supply, 24-bit, sigma-delta ADC with ±10 V and 0 mA to 20 mA inputs. The suffix difference is packaging: AD4111BCPZ is supplied in a tray, while AD4111BCPZ-RL7 is supplied in tape and reel. Both use the same 40-lead LFCSP (CP-40-8) package and have identical electrical specifications.
Are AD4111BCPZ and AD4111BCPZ-RL7 electrically and functionally identical?
Yes. Both orderable part numbers refer to the same AD4111 die and package. The AD4111BCPZ-RL7 is simply the tape-and-reel version of the AD4111BCPZ tray version. Datasheet parameters such as resolution, input ranges, accuracy, and temperature range apply equally to both.
Can AD4111BCPZ-RL7 be used as a drop-in replacement for AD4111BCPZ?
Yes, provided the assembly process supports the tape-and-reel packaging format. The package footprint, pinout, and electrical performance are identical, so no PCB or firmware changes are required when substituting one for the other.
What package and pin count do AD4111BCPZ and AD4111BCPZ-RL7 use?
Both parts are offered in a 40-lead LFCSP (lead frame chip scale package) with a 6 mm × 6 mm body and exposed pad. The Analog Devices package code is CP-40-8. Pin assignments and thermal pad requirements are the same for both orderable part numbers.
What are the key ADC specifications common to AD4111BCPZ and AD4111BCPZ-RL7?
Both are 24-bit sigma-delta ADCs with four differential or eight single-ended analog input channels. They support ±10 V voltage inputs and 0 mA to 20 mA current inputs, operate from a single 5 V AVDD supply with a 2.5 V to 5.5 V IOVDD, and include an integrated precision reference. They are specified over the −40 °C to +105 °C industrial temperature range.
Which applications are suitable for AD4111BCPZ and AD4111BCPZ-RL7?
Both parts target industrial process control, PLC and DCS analog input modules, instrumentation, and smart transmitters. The integrated ±10 V and 0 mA to 20 mA input ranges eliminate external signal conditioning, making them suitable for multichannel industrial measurement systems.
Do AD4111BCPZ and AD4111BCPZ-RL7 differ in price or availability?
Pricing and availability can differ because tape-and-reel packaging (AD4111BCPZ-RL7) is typically priced per reel and may have different minimum order quantities than the tray version (AD4111BCPZ). For current pricing, lead time, and stock, consult authorized distributors such as DigiKey, Mouser, or Analog Devices directly.
What documentation should be consulted before designing with either part?
Use the official Analog Devices AD4111 datasheet and the CP-40-8 package drawing. These documents define the electrical characteristics, timing, register map, layout guidelines, and soldering profile that apply to both AD4111BCPZ and AD4111BCPZ-RL7.