Datasheet ADA4312-1 (Analog Devices)

Wideband, Differential, High Output Current Line Driver with Shutdown Data Sheet ADA4312-1 FEATURES FUNCTIONAL BLOCK DIAGRAM High speed T A T B −3 dB bandwidth: 195 MHz, G = +16 V/V, R = 40 Ω CC OU NC V OU DIFF L, DIFF Differential slew rate: 2100 V/µs 16 15 14 13 Wide output swing: 18.0 V p-p differential, 12 V supply NC 1 12 NC High output current: 225 mA peak –IN A 2 11 –IN B G.hn MTPR at 16 dBm line power +IN A 3 10 +IN B −64 dBc typical at 5 MHz, referred to −58 dBm/Hz ADA4312-1 GND 4 9 SD −64 dBc typical at 17 MHz, referred to −58 dBm/Hz −64 dBc typical at 28 MHz, referred to −58 dBm/Hz 5 6 7 8 −63 dBc typical at 31 MHz, referred to −58 dBm/Hz EE NC I ADJ NC V −61 dBc typical at 59 MHz, referred to −58 dBm/Hz
001
NC = NO CONNECT. DO NOT CONNECT −62 dBc typical at 82 MHz, referred to −58 dBm/Hz TO THIS PIN.
1044- 1
Shutdown
Figure 1. Thermally Enhanced, 4 mm × 4 mm, 16-Lead LFCSP
CMOS-compatible SD pin Shutdown quiescent current: 3 mA TYPICAL APPLICATION CIRCUIT ZOUT in shutdown: 10 kΩ differential (open-loop) Resistor adjustable quiescent current 1/2 APPLICATIONS ADA4312-1 ITU G.hn (ITU G.9960/G.9961) V HomePlug AV MID* HomePlug AV2 IEEE 1901 1/2 GENERAL DESCRIPTION ADA4312-1 V
002 The ADA4312-1 is a high speed, differential, current feedback line
CC VMID = 2
1044- 1 driver designed for half-duplex G.hn power line communication Figure 2. Typical PLC Driver Application (PLC) modems. The high output current, high bandwidth, and slew rate of 2100 V/µs make the ADA4312-1 an excellent choice for G.hn broadband applications that require high linearity while driving low impedance loads. The CMOS-compatible shutdown control pin (SD) reduces the quiescent current to 3 mA while maintaining an output impedance of 10 kΩ differential. The ADA4312-1 also provides resistor adjustable quiescent current for improved efficiency in transmit mode. The ADA4312-1 is available in a thermally enhanced, 16-lead LFCSP with an exposed pad to facilitate robust thermal management. The ADA4312-1 is rated to operate over the extended industrial temperature range of −40°C to +85°C.
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Document Outline Features Applications General Description Functional Block Diagram Typical Application Circuit Revision History Specifications Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuit Applications Information Feedback Resistor Selection General Operation Half-Duplex Operation Establishing VMID Bias Control and Linearity PCB Layout Thermal Management Power Supply Bypassing Evaluation Board Outline Dimensions Ordering Guide