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PGA870IRHDT Datasheet(PDF) 4 Page - National Semiconductor (TI) |
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PGA870IRHDT Datasheet(HTML) 4 Page - National Semiconductor (TI) |
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4 / 39 page  PGA870 SBOS436A – DECEMBER 2009 – REVISED FEBRUARY 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS+= +5 V (continued) Boldface limits are tested at +25 °C. At TA= +25°C, VS+= +5 V, differential input signal, differential VOUT = 2 VPP, RL= 200 Ω differential, G = 20 dB, and input and output common-mode at internal midsupply reference, unless otherwise noted. PGA870IRHD TEST PARAMETER CONDITIONS MIN TYP MAX UNITS LEVEL(1) OUTPUT TA= +25°C 3.5 3.7 V A Maximum output voltage high Each output with TA= –40°C to +85°C 3.4 V B 100 Ω to TA= +25°C 1.3 1.5 V A midsupply Minimum output voltage low TA= –40°C to +85°C 1.6 V B TA= +25°C, RL = 200 Ω 4 4.8 VPP B Differential output voltage swing TA= –40°C to +85°C 3.6 VPP B Differential output current drive TA= +25°C, RL = 20 Ω 40 50 mAP A Output common-mode offset from TA= +25°C, RL = 20 Ω –60 ±10 60 mV A midsupply Differential output impedance f = 100 MHz 3.5 / 87 Ω / ° B Differential output impedance model Series ROUT,EQ, LOUT,EQ 0.3 / 3.8 Ω / nH B POWER SUPPLY Specified operating voltage 4.75 5 5.25 V C TA= +25°C 138 143 148 mA A Quiescent current TA= –40°C to +85°C 136 150 mA B Power-supply rejection ratio (PSRR) TA= +25°C, Gain = 20 dB (2) 54 76 dB A POWER DOWN Device power-up voltage threshold Ensured on above 2.1 V 2.1 V A Device power-down voltage threshold Ensured off below 0.9 V 0.9 V A TA= +25°C 2 4 mA A Power-down quiescent current TA= –40°C to +85°C 4.8 mA B Forward isolation in power-down state f = 100 MHz -110 dB C PD pin input bias current PD= VS– 0.5 μA B PD pin input impedance 20 || 0.5 k Ω || pF C Turn-on time delay Measured to output on 16 ns C Turn-off time delay Measured to output off 60 ns C GAIN SETTING Gain range –11.5 +20 dB A Gain control: G0 to G5 6 Bits B Gain step size –11.5 dB ≤ Gain ≤ +20 dB 0.50 dB A Absolute gain error –0.35 ±0.05 0.35 dB A Gain error over entire gain range Step to step gain error –0.10 ±0.03 0.10 dB A Gain temp coefficient 0.0018 0.0022 0.0026 dB/ °C B Gain settling time 5 ns B DIGITAL INPUTS B0 to B5 and Latch Digital threshold low 0.9 V A Digital threshold high 2.1 V A Current into/out of digital pins ±20 nA C Data set up time to GAIN STROBE low 2.5 ns C Data hold time after GAIN STROBE 0 ns C low Latency time 6.4 ns C (2) PSRR is defined with respect to a differential output. 4 © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): PGA870 |
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