Overview
The LMH6503MAX/NOPB is a wideband, DC coupled, differential input, voltage controlled gain stage followed by a high-speed current feedback operational amplifier (Op Amp) from Texas Instruments. This device is designed to directly drive low impedance loads and offers a high degree of versatility in various signal processing applications. The LMH6503 features a gain adjustment range of more than 70dB up to 10MHz, making it suitable for a wide range of applications requiring precise gain control.
Key Specifications
| Parameter | Min | Typical | Max | Units |
|---|---|---|---|---|
| -3dB Bandwidth | 135 | MHz | ||
| Gain Control Bandwidth | 100 | MHz | ||
| Gain Adjustment Range (Typical Over Temp) | 70 | dB | ||
| Gain Matching (Limit) | ±0.7 | dB | ||
| Slew Rate | 1800 | V/μs | ||
| Supply Current (No Load) | 37 | mA | ||
| Linear Output Current | ±75 | mA | ||
| Output Voltage (RL = 100Ω) | ±3.2 | V | ||
| Input Voltage Noise | 6.6 | nV/√Hz | ||
| Input Current Noise | 2.4 | pA/√Hz | ||
| THD (20MHz, RL = 100Ω, VO = 2V PP) | -57 | dBc | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Package Type | SOIC-14, TSSOP-14 |
Key Features
- Differential input, voltage controlled gain stage followed by a high-speed current feedback Op Amp.
- Direct drive capability for low impedance loads.
- Gain adjustment range of more than 70dB up to 10MHz.
- Maximum gain set by external components, reducible to cut-off.
- High slew rate of 1800V/μs and high output current of ±75mA.
- Differential inputs for common mode rejection and versatility in single-ended or differential operation.
- Gain control pin with high input impedance for simplified drive requirements.
- Linear gain control in V/V throughout the gain adjustment range.
- Available in SOIC-14 and TSSOP-14 packages.
Applications
- Variable Attenuators
- Automatic Gain Control (AGC) circuits
- Voltage Controlled Filters
- Multipliers
- Low-level signal amplification, especially in applications with long wire runs.
- Single supply applications with virtual half-supply configuration.
Q & A
- What is the primary function of the LMH6503MAX/NOPB?
The LMH6503MAX/NOPB is a wideband, DC coupled, differential input, voltage controlled gain stage followed by a high-speed current feedback Op Amp.
- What is the gain adjustment range of the LMH6503MAX/NOPB?
The gain adjustment range is more than 70dB up to 10MHz.
- What is the slew rate of the LMH6503MAX/NOPB?
The slew rate is 1800V/μs.
- What is the maximum output current of the LMH6503MAX/NOPB?
The maximum output current is ±75mA.
- What are the available package types for the LMH6503MAX/NOPB?
The device is available in SOIC-14 and TSSOP-14 packages.
- What is the operating temperature range of the LMH6503MAX/NOPB?
The operating temperature range is -40°C to 85°C.
- Can the LMH6503MAX/NOPB be used in single supply applications?
- What is the input voltage noise of the LMH6503MAX/NOPB?
The input voltage noise is 6.6 nV/√Hz.
- What is the total harmonic distortion (THD) of the LMH6503MAX/NOPB at 20MHz?
The THD at 20MHz with RL = 100Ω and VO = 2V PP is -57 dBc.
- Can the LMH6503MAX/NOPB drive heavy load currents?
