THS4509-Q1 Texas instruments

THS4509-Q1

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THS4509-Q1

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Описание

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.

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

Number of channels	1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	5.25
BW at Acl (MHz)	2000
Acl, min spec gain (V/V)	2
Slew rate (typ) (V/µs)	6600
Architecture	Bipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz)	1.9
Iq per channel (typ) (mA)	37.7
Rail-to-rail	No
Vos (offset voltage at 25°C) (max) (mV)	4
Operating temperature range (°C)	-40 to 125
Iout (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	Decompensated, Shutdown
CMRR (typ) (dB)	90
Rating	Automotive