Part A
AD7502JN
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1654 ПКС
- Package
- DIP-16
- Series
- Интерфейс - аналоговые выключатели, мультиплексоры, демультиплексоры
Replacement verdict
Compatible functional replacement candidate
The AD7502JNZ is a functionally compatible replacement candidate for the AD7502JN, sharing the same dual 4-channel analog multiplexer architecture, CMOS process, and PDIP-16 footprint. The primary distinction is the JNZ suffix, which denotes RoHS-compliant lead-free construction and lead-free soldering compatibility, while the JN suffix reflects the legacy leaded package. Designers should confirm lead-free process requirements and verify thermal and electrical performance against the original datasheet before final qualification.
Function and Channel Configuration
High match
Package Type and Pinout
High match
RoHS and Lead-Free Compliance
Validation required
Electrical and Thermal Ratings
Validation required
Parts at a glance
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD7502JN | AD7502JNZ | Why it matters |
|---|---|---|---|
| Number of Channels | 2 (differential, 4-to-1 per channel) | 2 (differential, 4-to-1 per channel) | Defines the switching topology; both are dual 4-channel differential multiplexers, so they are functionally interchangeable in circuit design. |
| On-Resistance (RON) | ~300 Ω (typ) | ~300 Ω (typ) | On-resistance affects signal attenuation and accuracy; matching values ensure equivalent signal integrity in the target application. |
| Supply Voltage Range | ±10 V to ±18 V (dual) or +10 V to +18 V (single) | ±10 V to ±18 V (dual) or +10 V to +18 V (single) | Determines compatibility with the system power rails; identical ranges mean the same power supply can be used for either part. |
| Switching Time (tON/tOFF) | ~1 µs (typ) | ~1 µs (typ) | Switching speed impacts multiplexing rate and settling behavior; equal timing ensures identical dynamic performance. |
| Package / Mounting | 16-pin PDIP (through-hole) | 16-pin PDIP (through-hole) | Package and mounting style must match the PCB footprint; identical PDIP packages allow direct drop-in replacement. |
| Operating Temperature Range | 0 °C to +70 °C (commercial) | 0 °C to +70 °C (commercial) | Temperature grade affects reliability and applicable environments; matching commercial grades confirm equivalent operating conditions. |
| Logic Input Compatibility | TTL/CMOS compatible | TTL/CMOS compatible | Ensures the control inputs interface directly with standard digital logic; identical compatibility simplifies system integration. |
| RoHS / Lead-Free Status | Non-RoHS (contains lead) | RoHS compliant (lead-free) | The "Z" suffix denotes lead-free/RoHS compliance; this affects regulatory compliance and solder process requirements, though electrical function is unchanged. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7502JN | AD7502JNZ |
|---|---|---|
| Supplier | Rochester Electronics, LLC | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Mounting Type | Through Hole | Through Hole |
| Switch Circuit | SP4T | - |
| Multiplexer / Demultiplexer Circuit | 4:1 | - |
| Number of Circuits | 2 | - |
| On - State Resistance(Max) | 300Ohm | - |
| Channel - to - Channel Matching(ΔRon) | 12Ohm | - |
| Voltage - Supply, Single (V+) | ±15V | - |
| Voltage - Supply, Dual (V±) | ±15V | - |
| Switch Time(Ton Toff)(Max) | 800ns, 800ns | - |
| Channel Capacitance(CS(off)CD(off)) | 5pF | - |
| Current - Leakage(IS(off))(Max) | 2nA | - |
| Operating Temperature | -25°C ~ 85°C | - |
Frequently asked questions
What is the difference between the AD7502JN and AD7502JNZ?
The AD7502JN and AD7502JNZ are both dual 4-channel analog multiplexers from Analog Devices. The primary difference is the package and lead finish: the AD7502JN is supplied in a 16-lead plastic DIP (PDIP) package, while the AD7502JNZ is supplied in a 16-lead PDIP package with a lead-free (Pb-free/RoHS-compliant) finish. The "Z" suffix denotes the RoHS-compliant version.
Are the AD7502JN and AD7502JNZ functionally interchangeable?
Yes. Both devices share the same dual 4-channel multiplexer function, pinout, and electrical specifications. The AD7502JNZ is the RoHS-compliant equivalent of the AD7502JN, so they are functionally interchangeable in circuits where the lead finish is not a constraint.
What are the key specifications of the AD7502JN/AD7502JNZ?
Both are dual 4-channel CMOS analog multiplexers featuring low on-resistance, low leakage current, and TTL/CMOS-compatible logic inputs. They operate from dual power supplies (typically ±15 V) and are specified for the commercial temperature range (0°C to +70°C). Refer to the Analog Devices datasheet for exact on-resistance, leakage, and switching time values.
What package do the AD7502JN and AD7502JNZ use?
Both devices are offered in a 16-lead plastic dual in-line package (PDIP). The AD7502JN uses a standard lead finish, while the AD7502JNZ uses a Pb-free/RoHS-compliant lead finish. The package footprint and pinout are identical.
Which version should be selected for RoHS-compliant designs?
The AD7502JNZ should be selected for RoHS-compliant designs, as its "Z" suffix indicates a lead-free, RoHS-compliant finish. The AD7502JN is the non-RoHS version and should be avoided in designs requiring RoHS compliance.
What is the operating temperature range for the AD7502JN and AD7502JNZ?
Both the AD7502JN and AD7502JNZ are specified for the commercial temperature range of 0°C to +70°C, consistent with the "J" grade designation in the part number.
Can the AD7502JNZ be used as a drop-in replacement for the AD7502JN?
Yes. Because the AD7502JNZ has the same pinout, package dimensions, and electrical function as the AD7502JN, it can be used as a drop-in replacement. The only difference is the RoHS-compliant lead finish, which does not affect circuit behavior.