| Number of channels (#) | 1 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 3 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 5.25 |
| BW @ Acl (MHz) | 2000 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (Typ) (V/us) | 6600 |
| Architecture | Fully Differential ADC Driver, Bipolar |
| Vn at flatband (Typ) (nV/rtHz) | 1.9 |
| Iq per channel (Typ) (mA) | 37.7 |
| Rail-to-rail | No |
| Vos (offset voltage @ 25 C) (Max) (mV) | 4 |
| Operating temperature range (C) | -40 to 125 |
| | |
| Output current (Typ) (mA) | 96 |
| TI functional safety category | Functional Safety-Capable |
| 2nd harmonic (dBc) | 104 |
| 3rd harmonic (dBc) | 108 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
| GBW (Typ) (MHz) | 3000 |
| Input bias current (Max) (pA) | 18500000 |
| Features | Shutdown, Decompensated |
| CMRR (Typ) (dB) | 90 |
| Rating | Automotive |
- Qualified for Automotive Applications
- Fully Differential Architecture
- Centered Input Common-Mode Range
- Minimum Gain of 2?V/V (6 dB)
- Bandwidth: 1900 MHz
- Slew Rate: 6600 V/μs
- 1% Settling Time: 2 ns
- HD2: –75 dBc at 100 MHz
- HD3: –80 dBc at 100 MHz
- OIP2: 73 dBm at 70 MHz
- OIP3: 37 dBm at 70 MHz
- Input Voltage Noise: 1.9 nV/√Hz (f?>?10?MHz)
- Noise Figure: 17.1 dB
- Output Common-Mode Control
- Power Supply:
- Voltage: 3 V (±1.5 V) to 5 V (±2.5 V)
- Current: 37.7 mA
- Power-Down Capability: 0.65 mA
The THS4509-Q1 is a wideband, fully differential operational amplifier designed for 5-V data-acquisition systems. It has very low noise at 1.9?nV/√Hz, and extremely low harmonic distortion of –75-dBc HD2 and –80-dBc HD3 at 100?MHz with 2?Vpp, G?=?10?dB, and 1-kΩ load. Slew rate is very high at 6600?V/μs and with settling time of 2?ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for minimum gain of 6?dB but is optimized for gain of 10?dB.
To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 3-mV offset (typical) from the set voltage, when set within 0.5?V of mid-supply, with less than 4-mV differential offset voltage. The common-mode set point is set to mid-supply by internal circuitry, which may be overdriven from an external source.
The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high-performance at low power-supply voltage, this makes for extremely high-performance single-supply 5-V data-acquisition systems.
The THS4509-Q1 is offered in a quad 16-pin leadless QFN package (RGT) and is characterized for operation over the full automotive temperature range from –40°C to 125°C.
