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PGA308 Datasheet(PDF) 4 Page - Texas Instruments |
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PGA308 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 30 page  PGA308 SBOS440B – JULY 2008 – REVISED DECEMBER 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, VS = +5V, GND = 0V, DOUT/VCLAMP = +5V, and VREF = +5V, unless otherwise noted. PGA308 PARAMETER CONDITIONS MIN TYP MAX UNIT Coarse Offset Adjust (RTI of Front-End PGA) (6) Range VREF = +5V –100 +100 mV Resolution 7 bit + sign, VREF = +5V 1 mV PSRR 2 mV/V CMRR 1 mV/V Drift Coarse Offset Adjust = 100mV 1.2 mV/°C Fine Offset Adjust (Zero DAC) Programming Range RTO of Front-End PGA –0.5VREF +0.5VREF V Output Voltage Range 0.1 VS – 0.1 V Resolution 65,536 steps, 16-bit DAC, VREF = +5V 76 mV Integral Nonlinearity ±6 LSB Differential Nonlinearity ±0.5 LSB Gain Error ±0.5 % Gain Error Drift ±4 ppm/°C Offset ±4 mV Offset Drift ±10 mV/°C PSRR ±200 mV/V Output Amplifier Output Fine Gain Adjust (Gain DAC) Range 0.33 1 V/V Resolution 65,536 steps, 16-bit DAC 10 mV/V Integral Nonlinearity ±6 LSB Differential Nonlinearity ±0.5 LSB Gain Error ±0.2 % Gain Drift 3 ppm/°C Output Amplifier Offset Voltage (RTI of Output Amplifier) (6) ±3 mV vs Temperature ±5 mV/°C vs Supply Voltage, VS ±100 mV/V Common-Mode Input Range 0 VS – 1.5 V Input Bias Current ±100 pA Amplifier Internal Gain Gain Range Steps 2, 2.4, 3, 3.6, 4, 4.5, 6 2 6 V/V Initial Gain Error ±0.05 ±0.25 % vs Temperature ±1 ppm/°C Output Voltage Range IOUT = 0.5mA (7) 0.03 VS – 0.06 V IOUT = 4mA (7) 0.1 VS – 0.1 V Output Short-Circuit Current ISC Sourcing/sinking 10 mA Open-Loop Gain at 0.1Hz 106 dB Gain-Bandwidth Product 2 MHz Phase Margin Gain = 2, CL = 200pF 45 deg Output Resistance RO AC small-signal, open-loop, f = 1MHz, IOUT = 0, see 500 Ω Figure 28 (6) RTI = Referred-to-input. (7) Unless limited by the over/under-scale setting, or VCLAMP pin. 4 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated Product Folder Link(s): PGA308 |
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Similar Description - PGA308_16 |
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