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ADS127L01 Datasheet(PDF) 7 Page - Texas Instruments |
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ADS127L01 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 70 page 7 THS4551 www.ti.com SBOS778A – APRIL 2016 – REVISED AUGUST 2016 Product Folder Links: THS4551 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated Electrical Characteristics: (VS+) – (VS–) = 5 V (continued) at TA ≈ 25°C, VOCM pin = open, RF = 1 kΩ, RL = 1 kΩ, VOUT = 2 VPP, 50-Ω input match, G = 1 V/V, PD = VS+, single-ended input, differential output, and input and output referenced to default midsupply for ac-coupled tests (unless otherwise noted); see Figure 61 for a gain of 1-V/V test circuit PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TEST LEVEL(1) (5) TA = 25°C and ICC ≈ 1.35 mA. The test limit is expanded for the ATE ambient range of 22°C to 32°C with a 4-µA/°C ICC temperature coefficient considered; see Figure 95. (6) Specifications are from the input VOCM pin to the differential output average voltage. POWER SUPPLY Specified operating voltage 2.7 5 5.4 V B IQ Quiescent operating current TA ≈ 25°C (5), V S+ = 5 V 1.28 1.35 1.44 mA A TA = –40°C to +125°C, VS+ = 5 V 0.97 1.92 B dIQ/dT Quiescent current temperature coefficient VS+ = 5 V 2.4 3.9 5.4 µA/°C B ±PSRR Power-supply rejection ratio Either supply pin to differential VOUT 93 110 dB A POWER-DOWN Enable voltage threshold Specified on above 1.7 V (VS–) + 1.15 V A Disable voltage threshold Specified off below 0.7 V (VS–) + 0.55 V A Disable pin bias current PD = VS– → VS+ –100 ±10 100 nA B Power-down quiescent current 2 8 µA A tON Turn-on time delay Time from PD = low to VOUT = 90% of final value 700 ns C tOFF Turn-off time delay Time from PD = low to VOUT = 10% of final value 100 ns C OUTPUT COMMON-MODE VOLTAGE (VOCM) CONTROL (6) (See Figure 65) SSBW Small-signal bandwidth VOCM = 100 mVPP at the control pin 40 MHz C LSBW Large-signal bandwidth VOCM = 1 VPP at the control pin 8 MHz C SR Slew rate(2) From 1-VPP LSBW 18 V/µs C Output common-mode noise ( ≥ 2 kHz) VOCM pin driven from low impedance 15 nV/ √Hz C Gain VOCM control pin input to output average voltage (see Figure 65) 0.997 0.999 1.001 V/V A Input bias current –100 ±10 100 nA A DC output balance (differential mode to common-mode output) VOUT = ±1 V 85 dB C Output balance SSBW VOUT = 100 mVPP (output balance drops –3 dB from the 85-dB dc level) 300 kHz C LSBW VOUT = 2 VPP (output balance drops –3 dB from the 85-dB dc level) 300 C Input impedance (VOCM pin input) 47 || 1.3 kΩ || pF C Default voltage offset from [(VS+) – (VS–)] / 2 VOCM pin open –12 ±2 12 mV A CM VOS Common-mode offset voltage VOCM pin driven to [(VS+) – (VS–)] / 2 TA = 25°C –5.0 ±1 5.0 mV A TA = 0°C to +70°C –5.25 5.5 B TA = –40°C to +85°C –5.7 5.6 B TA = –40°C to +125°C –5.7 6.0 B Common-mode offset voltage drift(4) TA = –40°C to +125°C –10 ±2 10 µV/°C B Common-mode loop supply headroom to negative supply < ±4-mV shift from midsupply CM VOS TA = 25°C 0.55 V A TA = 0°C to +70°C 0.6 B TA = –40°C to +85°C 0.65 B TA = –40°C to +125°C 0.7 B Common-mode loop supply headroom to positive supply < ±4-mV shift from midsupply CM VOS TA = 25°C 1.5 V A TA = 0°C to 70°C 1.6 B TA = –40°C to +85°C 1.65 B TA = –40°C to +125°C 1.7 B |
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