LMH5401 Texas instruments

LMH5401

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LMH5401

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Описание

The LMH5401 device is a very high-performance, differential amplifier optimized for radio frequency (RF), intermediate frequency (IF), or high-speed, dc-coupled, time-domain applications. The device is ideal for dc- or ac-coupled applications that may require a single-ended-to-differential (SE-DE) conversion when driving an analog-to-digital converter (ADC). The LMH5401 generates very low levels of second- and third-order distortion when operating in SE-DE or differential-to-differential (DE-DE) mode.The amplifier is optimized for use in both SE-DE and DE-DE systems. The device has unprecedented usable bandwidth from DC to 2 GHz. The LMH5401 can be used for SE-DE conversions in the signal chain without external baluns in a wide range of applications such as test and measurement, broadband communications, and high-speed data acquisition.A common-mode reference input pin aligns the amplifier output common-mode with the ADC input requirements. Power supplies between 3.3 V and 5 V can be selected and dual-supply operation is supported when required by the application. A power-down feature is also available for power savings.This level of performance is achieved at a very low power level of 275 mW when a 5-V supply is used. The device is fabricated in Texas Instruments advanced complementary BiCMOS process and is available in a space-saving, UQFN-14 package for higher performance.

Gain Bandwidth Product (GBP): 8 GHz
Excellent Linearity Performance:
DC to 2 GHz, G = 12 dB
Slew Rate: 17,500 V/µs
Low HD2, HD3 Distortion
(1 V_PP, 200 Ω, DE-DE, G = 12 dB):
- 100 MHz: HD2 at –104 dBc, HD3 at –96 dBc
- 200 MHz: HD2 at –95 dBc, HD3 at –92 dBc
- 500 MHz: HD2 at –80 dBc, HD3 at –77 dBc
- 1 GHz: HD2 at –64 dBc, HD3 at –58 dBc
Low IMD2, IMD3 Distortion
(2 V_PP, 200 Ω, DE-DE, G = 12 dB):
- 200 MHz: IMD2 at –96 dBc, IMD3 at –95 dBc
- 500 MHz: IMD2 at –80 dBc, IMD3 at –83 dBc
- 1 GHz: IMD2 at –70 dBc, IMD3 at –63 dBc
Input Voltage Noise: 1.25 nV/√Hz
Input Current Noise: 3.5 pA/√Hz
Supports Single- and Dual-Supply Operation
Power Consumption: 55 mA
Power-Down Feature

Number of channels	1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	3.15
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	5.25
BW at Acl (MHz)	6200
Acl, min spec gain (V/V)	2
Slew rate (typ) (V/µs)	17500
Architecture	Bipolar, Fully Differential ADC Driver
Vn at flatband (typ) (nV√Hz)	1.25
Iq per channel (typ) (mA)	55
Rail-to-rail	No
Vos (offset voltage at 25°C) (max) (mV)	5
Operating temperature range (°C)	-40 to 85
Iout (typ) (mA)	50
2nd harmonic (dBc)	99
3rd harmonic (dBc)	94
Frequency of harmonic distortion measurement (MHz)	100
GBW (typ) (MHz)	8000
Input bias current (max) (pA)	60000000
Features	Shutdown
CMRR (typ) (dB)	72
Rating	Catalog