AD815ARB-24

Features:

Flexible Configuration
Differential Input and Output Driver
or Two Single-Ended Drivers
High Output Power
Power Package
26 dBm Differential Line Drive for ADSL Applicati
40 V p-p Differential Output Voltage, RL =  50 V
500 mA Minimum Output Drive/Amp, RL  = 5 V
Thermally Enhanced SOIC
400 mA Minimum Output Drive/Amp, RL  = 10 V
Low Distortion
66 dB @ 1 MHz THD, RL = 200 V, VOUT = 40 V p-p
0.05% and 0.458 Differential Gain and Phase, RL = 25
(6 Back-Terminated Video Loads)
High Speed
120 MHz Bandwidth (3 dB)
900 V/ms Differential Slew Rate
70 ns Settling Time to 0.1%
Thermal Shutdown


Application

ADSL, HDSL and VDSL Line Interface Driver  coil or Transformer Driver
CRT Convergence and Astigmatism Adjustment video Distribution Amp
Twisted Pair Cable Driver

Pinout




Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . .  18 V Total Internal Power
Dissipation2 Plastic (Y and VR)  . .  3.05 Watts (Observe Derating Curves) Small Outline (RB)  . . 
2.4 Watts (Observe Derating Curves)Input Voltage (Common Mode)  . . . . . . . . . . . . . . . . . .
. . VS Differential Input Voltage  . . . . . . . . . . . . . . . . . . . . . . . .  6 V  Output
Short Circuit Duration . . . . . . . . . . . . . . . . . . . . . .  Observe Power Derating Curves Can
Only Short to Ground Storage Temperature Range Y, VR and RB Package . . . . . . . . . . . . . . . 
65 C to +125 C Operating Temperature Range AD815A . . . . . . . . . . . . . . . . . . . . . . . . .
. .  40 C to +85 C Lead Temperature Range (Soldering, 10 sec)  . . . . . . . +300 C
NOTES
1Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device.
This is a stress rating only; functional operation of the device at these or any other conditions above
those indicated in the operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.2Specification is for device
in free air with 0 ft/min air flow: 15-Lead Through-Hole and Surface Mount: q JA = 41 C/W; 24-Lead Surface
Mount: q JA = 52 C/W.

The maximum power that can be safely dissipated by the AD815 is limited by the associated rise in junction
temperature. The maximum safe junction temperature for the plastic encapsulated parts is determined by the
glass transition temperature of the plastic, about 150 C.  Exceeding this limit temporarily may cause a shift
in parametric performance due to a change in the stresses exerted on the die by the package.  Exceeding a
junction temperature of 175 C for an extended period can result in device failure.The AD815 has thermal shutdown
protection, which guarantees that the maximum junction temperature of the die remains below a safe level, even
when the output is shorted to ground. Shorting the output to either power supply will result in device failure.
To ensure proper operation, it is important to observe the derating curves and refer to the section on power
considerations.It must also be noted that in high (noninverting) gain configurations (with low values of gain
resistor), a high level of input overdrive can result in a large input error current, which may result in a
significant power dissipation in the input stage. This power must be included when computing the junction
temperature rise due to total internal power.

 

Description

The AD815 consists of two high speed amplifiers capable of supplying a minimum of 500 mA. They are typically configured as a differential driver enabling an output signal of 40 V p-p on 15 V supplies. This can be increased further with the use of a coupling transformer with a greater than 1:1 turns ratio. The low harmonic distortion of 66 dB @ 1 MHz into 200W combined with the wide bandwidth and high current drive mak the differential driver ideal for communication applications suc as subscriber line interfaces for ADSL, HDSL and VDSL.The AD815 differential slew rate of 900 V/m s and high load drive are suitable for fast dynamic control of coils or transformers,and the video performance of 0.05% and 0.45  differential gain and phase into a load of 25 W  enable up to 12 back-terminated loads to be driven.Three package styles are available, and all work over the industrial temperature range (40 C to +85 C). Maximum output power is achieved with the power package available for through-hole mounting (Y) and surface-mounting (VR). The 24-lead SOIC (RB) is capable of driving 26 dBm for full rate ADSL with proper heat sinking.


Parameters:

Technical/Catalog Information	AD815ARB-24
Vendor	Analog Devices Inc
Category	Integrated Circuits (ICs)
Packaging	Tube
Amplifier Type	Differential
Number of Circuits	2 - Dual
Package / Case	24-SOIC (7.5mm Width) Fused Leads
Slew Rate	900 V/s
Gain Bandwidth Product	-
Current - Supply	30mA
Current - Output / Channel	500mA
Voltage - Supply, Single/Dual (±)	10 V ~ 36 V, ±5 V ~ 18 V
Output Type	-
-3db Bandwidth	120MHz
Current - Input Bias	10A
Operating Temperature	-40°C ~ 85°C
Voltage - Input Offset	10000V
Drawing Number	*
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	AD815ARB 24 AD815ARB24