Product Summary

The LT5521 is a very high linearity mixer optimized for low distortion and low LO leakage applications. The chip includes a high speed LO buffer with single-ended input and a double-balanced active mixer. The LT5521 requires only –5dBm LO input power to achieve excellent distortion and noise performance, while reducing external drive circuit requirements. The LO buffer is internally 50 Ohm matched for wideband operation.

With a 250MHz input, a 1.7GHz LO and a 1.95GHz output frequency, the mixer has a typical IIP3 of +24.2dBm, –0.5dB conversion gain and a 12.5dB noise figure.

The LT5521 offers exceptional LO-RF isolation, greatly reducing the need for output filtering to meet LO suppression requirements.

The device is designed to work over a supply voltage range from 3.15V to 5.25V.

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Features

Bidirectional I2C Communication Between Two Isolated Buses
Full Isolation with Inexpensive Ethernet Transformers or Capacitors
Low Voltage Level Shifting
I2C Maximum Operating Frequency:
100kHz for LTC4310-1
400kHz for LTC4310-2
I2C Specification Compliant VOL, VIL
±5kV Human Body Model ESD Protection
Rise Time Accelerators
SDA, SCL Hot-Swapping
Very Low Shutdown Current
Stuck Bus Disconnect and Recovery
Thermal Shutdown
10-Lead MSOP and 3mm × 3mm DFN Packages

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC4310CMS-1#PBF
LTC4310CMS-1#PBF


IC I2C ISOLATOR SMBUS 10MSOP

Data Sheet

0-1: $1.90
1-25: $1.27
25-100: $1.08
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LTC4000EGN#PBF
LTC4000EGN#PBF


IC CHARGER BATTERY 28-SSOP

Data Sheet

0-1: $5.29
1-25: $3.54
25-100: $3.01
LTC4000EGN#TRPBF
LTC4000EGN#TRPBF


IC CHARGER BATTERY 28-SSOP

Data Sheet

0-2500: $3.04
LTC4000EGN-1#PBF
LTC4000EGN-1#PBF


IC CHARGE MGMT MULTI CHEM 28SSOP

Data Sheet

0-294: $3.01
LTC4000EGN-1#TRPBF
LTC4000EGN-1#TRPBF


IC CHARGE MGMT MULTI CHEM 28SSOP

Data Sheet

0-2500: $3.04
LTC4000EUFD#PBF
LTC4000EUFD#PBF


IC CHARGER BATTERY 28-QFN

Data Sheet

0-219: $2.88
LTC4000EUFD#TRPBF
LTC4000EUFD#TRPBF


IC CHARGER BATTERY 28-QFN

Data Sheet

0-2500: $2.91