OPA4350
Operational AmplifierThe OPA4350 is a operational amplifier from Texas Instruments. View the full OPA4350 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Operational Amplifier
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Type | CMOS |
| Input Bias Current | 0.5 pA |
| Current - Output / Channel | 40 mA |
| Quiescent Current | 5.2mA (x2 Channels) |
| Gain Bandwidth Product | 38 MHz |
| Mounting Type | Surface Mount |
| Number of Circuits | 2 |
| Operating Temperature | -40°C ~ 85°C |
| Output Type | Rail-to-Rail |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Slew Rate | 22V/µs |
| Supplier Device Package | 8-SOIC |
| Input Offset Voltage | 150 µV |
| Supply Voltage Span (Max) | 5.5 V |
| Supply Voltage Span (Min) | 2.7 V |
Overview
Part: OPA350, OPA2350, OPA4350 — Texas Instruments
Type: High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers
Description: Rail-to-rail input and output operational amplifiers optimized for low voltage, single-supply operation, featuring 38 MHz bandwidth, 22 V/μs slew rate, and 5 nV/√Hz low noise.
Operating Conditions:
- Supply voltage: 2.7–5.5 V
- Operating temperature: -40 to 85 °C (specified range)
Absolute Maximum Ratings:
- Max supply voltage: 7 V
- Max continuous current: 10 mA
- Max junction/storage temperature: 150 °C
Key Specs:
- Input offset voltage (Vos): ±150 μV (typ, VS = 5 V)
- Input bias current (IB): ±0.5 pA (typ)
- Input voltage noise density (en): 5 nV/√Hz (typ, f = 100 kHz)
- Common-mode voltage range (VCM): -0.1 V to (V+) + 0.1 V (TA = -40°C to 85°C, VS = 2.7 V)
- Open-loop voltage gain (AOL): 122 dB (typ, RL = 10 kΩ)
- Gain-bandwidth product (GBW): 38 MHz (typ, G = 1)
- Slew rate (SR): 22 V/μs (typ, G = 1)
- Total harmonic distortion + noise (THD+N): 0.0006% (typ, RL = 600 Ω, VO = 2.5 VPP, G = 1, f = 1 kHz)
- Quiescent current (IQ): 5.2 mA (typ, per amplifier, IO = 0)
Features:
- Rail-to-Rail Input
- Rail-to-Rail Output (Within 10 mV)
- Unity-Gain Stable
- MicroSize Packages
- Single, Dual, and Quad versions
Applications:
- Cell Phone PA Control Loops
- Driving A/D Converters
- Video Processing
- Data Acquisition
- Process Controls
- Audio Processing
- Communications
- Active Filters
- Test Equipment
Package:
- MSOP (8)
- SOIC (8)
- PDIP (8)
- SSOP (16)
- SOIC (14)
Features
- 1 · Rail-to-Rail Input
- Rail-to-Rail Output (Within 10 mV)
- Wide Bandwidth: 38 MHz
- High Slew Rate: 22 V/ μ s
- Low Noise: 5 nV/ √ Hz
- Low THD+Noise: 0.0006%
- Unity-Gain Stable
- MicroSize Packages
- Single, Dual, and Quad
Applications
- Cell Phone PA Control Loops
- Driving A/D Converters
- Video Processing
- Data Acquisition
- Process Controls
- Audio Processing
- Communications
- Active Filters
- Test Equipment
Pin Configuration
OPA350: P, D, and DGK Packages 8-Pin PDIP, SOIC, and VSSOP Top View
OPA2350: P, D, and DGK Packages 8-Pin PDIP, SOIC, and VSSOP Top View
Electrical Characteristics
VS = 2.7 V to 5.5 V; All specifications at TA = 25°C, RL = 1 k Ω connected to VS/2 and VOUT = VS/2, unless otherwise noted.
| PARAMETER | PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP (1) | MAX | UNIT |
|---|---|---|---|---|---|---|---|
| OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE | OFFSET VOLTAGE |
| V S = 5 V | ±150 | ±500 | μV | ||||
| V OS | Input offset voltage | T A = - 40°C to 85°C | ±1 | mV | |||
| vs Temperature | T A = -40°C to 85°C | ±4 | μ V/°C | ||||
| PSRR | vs Power-supply rejection ratio | V = 2.7 V to 5.5 V, V CM = 0 V S | 40 | 150 175 | μV/V | ||
| Channel separation (dual, quad) | Channel separation (dual, quad) | Channel separation (dual, quad) | DC | 0.15 | μV/V | ||
| INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | INPUT BIAS CURRENT | ||
| I | Input bias current | ±0.5 | ±10 | pA | |||
| B | vs Temperature | See | Typical Characteristics | ||||
| I OS | Input offset current | ±0.5 | ±10 | pA | |||
| NOISE | NOISE | NOISE | NOISE | NOISE | NOISE | NOISE | NOISE |
| Input voltage noise, f = 100 Hz to 400 | kHz | 4 | μ Vrms | ||||
| e n | Input voltage noise density, f = 10 kHz | Input voltage noise density, f = 10 kHz | 7 | nV/ √ Hz | |||
| Input current noise density, f = 100 | kHz | 5 | nV/ √ Hz | ||||
| i n | Current noise density, f = 10 kHz | Current noise density, f = 10 kHz | 4 | fA/ √ Hz | |||
| INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE | INPUT VOLTAGE RANGE |
| V CM | Common-mode voltage | range | T A = - 40°C to 85°C V S = 2.7 V, - 0.1 V < V CM < 2.8 V | -0.1 66 | 84 | + 0.1 | V |
| CMRR | Common-mode rejection ratio | Common-mode rejection ratio | V S = 5.5 V, - 0.1 V < V CM < 5.6 V T A = - 40°C to 85°C, V S = 5.5 V, - 0.1 V < V CM < 5.6 V | 74 74 | 90 | dB | |
| INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE | INPUT IMPEDANCE |
| Differential | 10 13 \ | \ | 2.5 | ||||
| Common-mode | 10 13 \ | \ | 6.5 | ||||
| OPEN-LOOP GAIN | OPEN-LOOP GAIN | OPEN-LOOP GAIN | OPEN-LOOP GAIN R L = 10 k Ω , 50 mV < V O < (V+) -50 mV | OPEN-LOOP GAIN 100 | OPEN-LOOP GAIN 122 | OPEN-LOOP GAIN | OPEN-LOOP GAIN |
| A OL | Open-loop voltage | T A = -40°C to 85°C | R L = 10 k Ω , 50 mV < V O < (V+) -50 mV | 100 | |||
| gain | R L = 1 k Ω , 200 mV < V O < (V+) -200 mV R L = 1 k Ω , 200 mV < V O < (V+) -200 mV | 100 100 | 120 | dB | |||
| FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) | FREQUENCY RESPONSE (C L = 100 pF) |
| GBW | Gain-bandwidth product | G = 1 | 38 | MHz | |||
| SR | Slew rate | 0.1% | G = 1 G = ±1, 2-V | 22 0.22 | V/μs | ||
| Settling time | 0.01% | Step | 0.5 | μs | |||
| Overload recovery time | V IN × G = V S | 0.1 | μs | ||||
| THD+N | Total harmonic distortion Differential gain error | + noise | R L = 600 Ω , V O = 2.5 V PP (2) , G = 1, f = 1 G = 2, R L = 600 Ω , V O = 1.4 V (3) | 0.0006% 0.17% | |||
| Differential phase error | G = 2, R L = 600 Ω , V O = 1.4 V (3) | 0.17 | ° | ||||
| OUTPUT | OUTPUT | OUTPUT | OUTPUT R L = 10 k Ω , A OL ≥ 100 dB | OUTPUT | OUTPUT 10 | OUTPUT 50 | OUTPUT |
| V OUT | Voltage output swing from rail (4) | T A = -40°C to | R L = 10 k Ω , A OL ≥ 100 dB | 50 | mV | ||
| 85°C | R L = 1 k Ω , A OL ≥ 100 dB | 25 | 200 | ||||
| I OUT | Output current | ±40 (5) | mA | ||||
| I SC | short circuit current | ±80 | mA |
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Supply voltage | Supply voltage | 7 | V | |
| Voltage | (V - ) - 0.3 | (V+) + 0.3 | V | |
| Current | 10 | mA | ||
| Open short circuit current (3) | Open short circuit current (3) | Continuous | Continuous | |
| Operating temperature | Operating temperature | -55 | 150 | °C |
| Lead temperature (soldering, 10 s) | Lead temperature (soldering, 10 s) | 300 | °C | |
| Junction temperature | Junction temperature | 150 | °C | |
| T stg Storage temperature | T stg Storage temperature | -55 | 150 | °C |
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | NOM | MAX | UNIT | |
|---|---|---|---|---|
| Power supply voltage, (V+)-(V-) | 2.7 (±1.35) | 5 (±2.5) | 5.5 (±2.75) | V |
| Specified temperature | -40 | 25 | 85 | °C |
| Operating temperature | -55 | 25 | 150 | °C |
Thermal Information
| OPA350, OPA2350 | OPA350, OPA2350 | OPA350, OPA2350 | ||
|---|---|---|---|---|
| THERMAL METRIC (1) | DGK (VSSOP) | P (PDIP) | D (SOIC) | |
| 8 PINS | 8 PINS | 8 PINS | ||
| R θ JA | Junction-to-ambient thermal resistance | 169.2 | 53.1 | 140.1 |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 62.8 | 42.5 | 89.8 |
| R θ JB | Junction-to-board thermal resistance | 89.8 | 30.3 | 80.6 |
| ψ JT | Junction-to-top characterization parameter | 7.5 | 19.7 | 28.7 |
| ψ JB | Junction-to-board characterization parameter | 88.2 | 30.2 | 80.1 |
| R θ JC(bot) | Junction-to-case (bottom) thermal resistance | N/A | N/A | N/A |
Typical Application
Low pass filters are commonly employed in signal processing applications to reduce noise and prevent aliasing. The OPAx350 are ideally suited to construct high speed, high precision active filters. Figure 29 illustrates a second order low pass filter commonly encountered in signal processing applications.
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| OPA2350 | Texas Instruments | PDIP (8) |
| OPA2350EA/250 | Texas Instruments | — |
| OPA2350EA/250G4 | Texas Instruments | — |
| OPA2350EA/2K5 | Texas Instruments | — |
| OPA2350EA/2K5G4 | Texas Instruments | — |
| OPA2350UA | Texas Instruments | 8-SOIC (0.154", 3.90mm Width) |
| OPA2350UA/2K5 | Texas Instruments | — |
| OPA2350UA/2K5G4 | Texas Instruments | — |
| OPA2350UAG4 | Texas Instruments | — |
| OPA350 | Texas Instruments | — |
| OPAX350 | Texas Instruments | — |
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