Request Quote
(Ships tomorrow)
TSV994ID Equivalent & Substitute Parts
Part Overview
The TSV994ID is a general-purpose operational amplifier manufactured by STMicroelectronics, configured as a 4-circuit rail-to-rail amplifier in a 14-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for ongoing design support and production requirements. The TSV994ID operates across a supply voltage range of 2.5 V to 5.5 V with an automotive-grade qualification (AEC-Q100) and is ROHS3 compliant. Substitute parts must maintain functional compatibility while accommodating the electrical and mechanical constraints of the original design.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | TSV994ID | — |
| Manufacturer | STMicroelectronics | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 10 | V/µs |
| Gain Bandwidth Product | 20 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 100 | µV |
| Current - Supply (x4 Channels) | 820 | µA |
| Current - Output / Channel | 35 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| Product Status | Obsolete | — |
| Grade | Automotive | — |
| Qualification | AEC-Q100 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the TSV994ID is determined by the following critical parameters: 4-circuit configuration, rail-to-rail output topology, 14-SOIC package geometry, surface-mount technology, and supply voltage compatibility within the 2.5 V to 5.5 V range. The substitute parts are grouped into two categories based on electrical performance characteristics:
Category 1: Lower Performance Substitutes (AD8534 Series) These parts maintain the 4-circuit, rail-to-rail, 14-SOIC configuration but operate at reduced slew rate (5 V/µs versus 10 V/µs) and lower gain bandwidth product (3 MHz versus 20 MHz). They are suitable for applications where the TSV994ID's higher performance is not required.
Category 2: Ultra-Low Power Substitutes (AD8544 Series) These parts provide the lowest power consumption (45 µA total supply current versus 820 µA) with minimal input offset voltage (1 mV versus 100 µV). They maintain the 4-circuit, rail-to-rail, 14-SOIC configuration and extended temperature range (-40°C to 125°C). These are applicable for power-constrained applications.
Category 3: High-Performance CMOS Substitutes (AD8604 Series) These parts feature CMOS technology with extremely low input bias current (0.2 pA versus 1 pA) and moderate slew rate (6 V/µs). They maintain the 4-circuit, rail-to-rail, 14-SOIC configuration and are suitable for high-impedance signal conditioning applications.
All substitute parts are active products with ROHS3 compliance and MSL 1 rating, ensuring long-term availability and environmental compliance.
Parameter Comparison
| Parameter | TSV994ID | AD8534ARZ / AD8534ARZ-REEL | AD8544ARZ / AD8544ARZ-REEL / AD8544ARZ-REEL7 / AD8544WARZ-R7 / AD8544WARZ-RL | AD8604ARZ / AD8604ARZ-REEL / AD8604ARZ-REEL7 |
|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Amplifier Type | General Purpose | General Purpose | General Purpose | CMOS |
| Number of Circuits | 4 | 4 | 4 | 4 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Slew Rate (V/µs) | 10 | 5 | 0.92 | 6 |
| Gain Bandwidth Product (MHz) | 20 | 3 | 1 | 8.4 |
| Current - Input Bias (pA) | 1 | 5 | 4 | 0.2 |
| Voltage - Input Offset (µV) | 100 | 25000 | 1000 | 80 |
| Current - Supply (µA, x4 Channels) | 820 | 750 | 45 | 750 |
| Current - Output / Channel (mA) | 35 | 250 | 30 | 50 |
| Voltage - Supply Span (Min) (V) | 2.5 | 2.7 | 2.7 | 2.7 |
| Voltage - Supply Span (Max) (V) | 5.5 | 6 | 5.5 | 5.5 |
| Operating Temperature (°C) | -40 to 125 | -40 to 85 | -40 to 125 | -40 to 125 |
| Product Status | Obsolete | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Performance Replacement: The AD8604ARZ, AD8604ARZ-REEL, and AD8604ARZ-REEL7 provide the closest electrical performance match to the TSV994ID, with slew rate of 6 V/µs and gain bandwidth product of 8.4 MHz. These CMOS devices offer superior input bias current characteristics (0.2 pA) and maintain the extended operating temperature range (-40°C to 125°C). All variants are active products with ROHS3 compliance and MSL 1 rating. The AD8604 series is qualified for automotive applications and maintains full compatibility with the 14-SOIC package footprint.
For Power-Constrained Applications: The AD8544 series (AD8544ARZ, AD8544ARZ-REEL, AD8544ARZ-REEL7, AD8544WARZ-R7, AD8544WARZ-RL) delivers the lowest supply current consumption at 45 µA total, representing a 94.5% reduction compared to the TSV994ID. These devices maintain the extended temperature range and are suitable for battery-powered or energy-harvesting designs. All variants are active products with ROHS3 compliance.
For Cost-Optimized Designs: The AD8534ARZ and AD8534ARZ-REEL offer reduced performance specifications (5 V/µs slew rate, 3 MHz gain bandwidth product) at lower cost. These devices are suitable for general-purpose signal conditioning where the TSV994ID's higher performance is not required. Note that the operating temperature range is limited to -40°C to 85°C, which may restrict use in extended automotive temperature environments.
Packaging Considerations: All substitute parts are available in 14-SOIC surface-mount packages with identical footprints (0.154", 3.90mm width). Packaging variants include Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR) options. Selection should be based on production volume and assembly process requirements.
Frequently Asked Questions (FAQ)
Q: Can the AD8534ARZ be used as a direct replacement for the TSV994ID in automotive applications?
A: The AD8534ARZ is not recommended for automotive applications requiring the extended temperature range. The AD8534ARZ operates only to 85°C, whereas the TSV994ID and automotive-qualified substitutes (AD8604 and AD8544 series) operate to 125°C. For automotive designs, select AD8604ARZ or AD8544ARZ variants.
Q: What is the primary difference between the AD8544 and AD8604 series?
A: The AD8544 series prioritizes ultra-low power consumption (45 µA total supply current) with minimal input offset voltage (1 mV), making it suitable for power-constrained applications. The AD8604 series features CMOS technology with extremely low input bias current (0.2 pA) and higher slew rate (6 V/µs), making it better suited for high-impedance signal conditioning and faster transient response applications.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed (AD8534, AD8544, and AD8604 series) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance of the TSV994ID.
Q: What is the impact of the minimum supply voltage difference (2.5 V for TSV994ID versus 2.7 V for substitutes)?
A: The TSV994ID supports operation at 2.5 V minimum, while all substitute parts require a minimum of 2.7 V. Designs operating at 2.5 V supply voltage cannot use these substitutes without circuit modification. For applications requiring 2.5 V operation, alternative components must be evaluated.
Q: Can the AD8534ARZ be used in designs requiring the full -40°C to 125°C temperature range?
A: No. The AD8534ARZ is rated only to 85°C maximum operating temperature. For applications requiring -40°C to 125°C operation, use AD8544 or AD8604 series substitutes.
Q: What are the packaging options available for each substitute part?
A: AD8534 series: Tube (AD8534ARZ) and Cut Tape & Digi-Reel® (AD8534ARZ-REEL). AD8544 series: Tube (AD8544ARZ), Cut Tape & Digi-Reel® (AD8544ARZ-REEL, AD8544ARZ-REEL7), and Tape & Reel (AD8544WARZ-R7, AD8544WARZ-RL). AD8604 series: Tube (AD8604ARZ) and Cut Tape & Digi-Reel® (AD8604ARZ-REEL, AD8604ARZ-REEL7). Selection depends on production volume and assembly process requirements.
Q: Are all substitute parts currently in active production?
A: Yes. All substitute parts listed are classified as active products, ensuring long-term availability and ongoing manufacturing support. The TSV994ID is obsolete, making substitution necessary for new designs and ongoing production.
Q: What is the significance of the slew rate difference between the TSV994ID (10 V/µs) and substitutes?
A: Slew rate determines the maximum rate of voltage change the amplifier can produce. The TSV994ID's 10 V/µs slew rate is higher than the AD8534 (5 V/µs) and AD8604 (6 V/µs) series but lower than the AD8544 (0.92 V/µs). Applications requiring fast transient response should use AD8604ARZ. Applications with slower signal requirements can use AD8544 for power savings.
Q: How does the gain bandwidth product affect circuit performance?
A: Gain bandwidth product (GBW) defines the frequency-gain tradeoff. The TSV994ID's 20 MHz GBW supports higher closed-loop bandwidth designs. The AD8534 (3 MHz) and AD8544 (1 MHz) series are suitable for lower-frequency applications. The AD8604 (8.4 MHz) provides intermediate bandwidth capability. Select based on required signal bandwidth and closed-loop gain requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts