Part A
AD1674JR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 62 PCS
- Package
- SOIC-28
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD1674JRZ is a RoHS-compliant, lead-free version of the AD1674JR and serves as a direct functional replacement in existing designs. Both parts share identical core specifications including resolution, conversion architecture, and pin configuration, making the JRZ a suitable drop-in substitute where lead-free compliance is required.
Resolution
High match
Package Type
High match
Operating Temperature
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD1674JRZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4071 PCS
- Package
- SOIC-28
- 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 | AD1674JRZ | AD1674JR | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Determines the quantization step and achievable measurement accuracy of the ADC. |
| Number of Channels | 1 | 1 | Defines how many analog inputs can be digitized by a single device. |
| Sampling Rate | 100 kSPS | 100 kSPS | Sets the maximum signal bandwidth the ADC can capture without aliasing. |
| Input Type | Single-ended | Single-ended | Determines the analog front-end configuration and grounding requirements. |
| Interface Type | Parallel | Parallel | Affects the digital connection scheme and achievable data throughput to the host. |
| Supply Voltage | 5 V / ±12 V or ±15 V | 5 V / ±12 V or ±15 V | Must match the available system rails for correct operation and signal range. |
| Operating Temperature Range | 0 °C to 70 °C | 0 °C to 70 °C | Defines the environmental conditions under which specified accuracy is guaranteed. |
| Mounting Type | Surface Mount | Surface Mount | Determines board assembly process and physical compatibility with the PCB footprint. |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) | Package style and lead finish affect solderability, RoHS compliance, and drop-in replacement. |
| RoHS Status | RoHS Compliant | Non-RoHS / Leaded | RoHS compliance is required for many markets and affects manufacturing and disposal regulations. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD1674JR | AD1674JRZ |
|---|---|---|
| Supplier | Analog Devices Inc.,Rochester Electronics, LLC | - |
| Part Status | Obsolete | Active |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 100k | 100k |
| Number of Inputs | 1 | 1 |
| Input Type | Single Ended | Single Ended |
| Data Interface | Parallel | Parallel |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | SAR |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | ±11.4V ~ 16.5V | ±11.4V ~ 16.5V |
| Voltage - Supply, Digital | 5V | 5V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
Frequently asked questions
What is the difference between the AD1674JRZ and the AD1674JR?
The AD1674JRZ is the RoHS-compliant, lead-free version of the AD1674JR. The AD1674JR is the non-RoHS version that contains lead in its package termination finish. Both are 12-bit, 100 kSPS analog-to-digital converters from Analog Devices in a 28-lead SOIC package with the same electrical specifications and functional performance.
Are the AD1674JRZ and AD1674JR electrically and functionally interchangeable?
Yes. Both devices are identical 12-bit successive-approximation ADCs with a 100 kSPS sampling rate, on-chip sample-and-hold, and a 10 V input range. They share the same pinout, package footprint, and timing specifications. The only difference is the package termination finish and RoHS compliance status.
What is the resolution and sampling rate of the AD1674JRZ and AD1674JR?
Both the AD1674JRZ and AD1674JR are 12-bit analog-to-digital converters with a maximum throughput rate of 100 kSPS. They feature an on-chip sample-and-hold amplifier and a successive-approximation register architecture.
What package type do the AD1674JRZ and AD1674JR use?
Both the AD1674JRZ and AD1674JR are supplied in a 28-lead SOIC (Small Outline Integrated Circuit) package with a 0.300-inch body width. The package dimensions and pin assignments are identical between the two versions.
What is the operating temperature range for the AD1674JRZ and AD1674JR?
Both the AD1674JRZ and AD1674JR are specified for the commercial temperature range of 0°C to +70°C. This is indicated by the "J" grade designator in the part number.
Can the AD1674JRZ be used as a drop-in replacement for the AD1674JR in an existing design?
Yes, the AD1674JRZ is a drop-in replacement for the AD1674JR. They share the same electrical specifications, pinout, package dimensions, and timing characteristics. The only difference is that the AD1674JRZ is RoHS-compliant and lead-free, while the AD1674JR contains lead. No circuit redesign is required for substitution.
What is the input voltage range of the AD1674JRZ and AD1674JR?
Both the AD1674JRZ and AD1674JR offer a bipolar input voltage range of ±10 V or ±5 V, depending on the configuration. They also support unipolar input ranges of 0 V to +10 V or 0 V to +20 V. The input range is selected via external pin connections.
What are the power supply requirements for the AD1674JRZ and AD1674JR?
Both the AD1674JRZ and AD1674JR require dual power supplies of +15 V and -15 V for the analog section, and a +5 V supply for the digital section. The typical power consumption is 385 mW.