AD310-25 ALPHA | Alldatasheet
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GaAs IC 4 Bit Digital Attenuator 1 dB LSB DC-2 GHz CAAlpha AD310-25 Features S0iC-16 @ Attenuation in 1 dB Steps to 15 dB with 0.050 High Accuracy PIN 16 (1.27 mm) BSC ; ; _ DARAARA A} @ Designed for Cellular Radio Applications . PIN 0.244 (6.20 mm) Low Cost SOIC-16 Plastic Package INDICATORS by 0.228 (5.80 mm) . TOOOUOUE | @ Low DC Power Consumption ypouooooU PIN4 a) Le6.020 (0.51 mm) Description 068 (0.41 mm) -' ic isti 0.049 (1.24 45° The AD310-25 is an IC FET digital attenuator consisting (1.73 mm) MAX. oe oan oneer of four monolithic attenuators with LSB of 1 dB and a total . 7 8° MAX. attenuation of 15 dB with all attenuators connected. | \\ This unit is a pin for pin replacement for the ATOO2D8-25 << 9.394 (10.00 mm) _ with improved RF performance extended to 2 GHz. 9.986 (9.80 mm) t owas attenuation accuracy, low insertion loss and low intermodulation products are required. Typical applications include cellular radio, wireless data, wireless local loop and other gain level control circuits. Hectrical Specifications at 25°C (0, -5 V) ee Insertion Loss? DC-0.1 GHz 0.9 1.2 dB DC-0.5 GHz 11 15 3B DC-1.0 GHz 13 18 4B DC-2.0 GHz 24 2.5 3B nO Attenuation Accuracy* DC=1.0 GHz + (0.25 + 3% of Attenuation | dB Setting in dB) DC-2.0 GHz + (0.4 + 5% of Attenuation 4B Setting in dB) VSWR (I/O) DC=1.0 GHz 134 DC-2.0 GHz 1.6:1 Qperating Characteristics at 25°C (0, -5 V) [Parameter | Condon | Frequency | win | Wn | Wox | unt | Switching Characteristics® Rise, Fall (10/90% or 90/10% RF) 15 ns On, Off (50% CTL to 90/10% RF) 25 ns Video Feedthru 25 mv Input Power for 1 dB Compression 0.50-2.0 GHz +28 dBm
0.05 GHz +22 dBm
Intermodulation Intercept Point (IP3) For Two-tone Input Power +5 dBm 0.50-2.0 GHz +48 dBm
0.05 GHz +38 dBm
Control Voltages Viow = 0 to -0.2 V @ 20 HA Max Vuigh = -5 V @ 10 pA Typ. to -8 V @ 200 YA Max. 1. All measurements made in a 50 ohm system, unless otherwise specified. 4, Attenuation referenced to insertion loss. 2.DC = 300 kHz. 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. 3. Insertion loss changes by 0.003 dB/°C. Alpha Industries, Inc. [781] 935-5150 « Fax [617] 824-4579 * Email sales@alphaind.com « www.alphaind.com 1 Specttications subject to change without notice. 3/98A
GaAs IC 4 Bit Digital Attenuator 1 dB LSB DC-2 GHz AD310-25 Typical Performance Data (0, -5 V) a | aged | TBS ZH oO 0? ° 14 8 dB State [Naess asm Fa
12 Sa 12 oB State
[Semis Soom | 5 dB State 0 1.0 0 05 1 15 2.0 0 05 1 15 20 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency VSWR vs. Frequency 18 - * eee |_| ee a A eo | 0.5 W @ 50 MHz 0/-8 V LS a | e ——- ——— ——— eS a | LS SS SS SR | Note: Exceeding these parameters may cause irreversible damage. a | a mnese P y ° eS a | 0 05 1.0 15 2.0 Pin Qit Frequency (GHz) Jy GNDGND GND GNDGNDGND Je Attenuation vs. Fr ncy (All HBBEBBBESEDB ttenuation vs. Frequency (All States) ROOD on L_J L__J | Truth Table ah ae Oe ae Ol ae le, KARARARA RAIA Jide > [of s[oTs{oTs[o] 5] Reterenceit | HA DB fo;sf[o[sfo];s[{[s[o[ 48 | [sfof[o[sfo];sfo[s{[ se | Cspots[e [slo [s [0 |isas max Aten] 2 Alpha Industries, Inc. [781] 935-5150 « Fax [617] 824-4579 « Email sales@alphaind.com + www.alphaind.com Specttications subject to change without notice. 3/98A