SNOS515F October 2000 – August 2015 LM8272
PRODUCTION DATA.
- 1Features
- 2Applications
- 3Description
- 4Revision History
- 5Pin Configuration and Functions
- 6Specifications
-
7Application and Implementation
- 7.1 Block Diagram and Operational Description A) Input Stage:
- 7.2 B) Output Stage:
- 7.3 C) Output Voltage Swing Close to V−:
- 7.4 Driving Capactive Loads:
- 7.5 Estimating the Output Voltage Swing
- 7.6 Output Short Circuit Current and Dissipation Issues:
- 7.7 Other Application Hints:
- 7.8 LM8272 Advantages:
- 8Device and Documentation Support
- 9Mechanical, Packaging, and Orderable Information
封裝選項
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DGK|8
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購信息
6 Specifications
6.1 Absolute Maximum Ratings(1)(3)
over operating free-air temperature range (unless otherwise noted)| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| VIN Differential | +/−10 | V | ||
| Output Short Circuit Duration | See(5)(6) | |||
| Supply Voltage (V+ - V−) | 27 | V | ||
| Voltage at Input/Output pins | V+ +0.3, V− −0.3 | V | ||
| Junction Temperature(4) | +150 | °C | ||
| Storage temperature range, Tstg | −65 | +150 | °C | |
| Soldering Information: | Infrared or Convection (20 sec.) | 235 | °C | |
| Wave Soldering (10 sec.) | 260 | °C | ||
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Rating indicate conditions for which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test conditions, see the Electrical Characteristics.
(2) Human body model, 1.5 kΩ in series with 100 pF. Machine Model, 0 Ω is series with 200 pF.
(3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications.
(4) The maximum power dissipation is a function of TJ(max), RθJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(max) - TA)/ RθJA. All numbers apply for packages soldered directly onto a PC board.
(5) Applies to both single‐supply and split‐supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150°C.
(6) Output short circuit duration is infinite for VS ≤ 6 V at room temperature and below. For VS > 6 V, allowable short circuit duration is 1.5 ms.
6.2 ESD Ratings
| VALUE | UNIT | |||
|---|---|---|---|---|
| V(ESD) | Electrostatic discharge(2) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins(1) | ±2000 | V |
| Machine Model (MM)(2) | ±200 | |||
(1) JEDEC document JEP155 states that 2000-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 200-V MM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)| MIN | NOM | MAX | UNIT | ||
|---|---|---|---|---|---|
| Supply Voltage (V+ - V−) | 2.5 | 24 | V | ||
| Operating Temperature Range(1) | −40 | +85 | °C | ||
(1) The maximum power dissipation is a function of TJ(max), RθJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJ(max) - TA)/ RθJA. All numbers apply for packages soldered directly onto a PC board.
6.4 Thermal Information
| THERMAL METRIC(1) | DGK | UNIT | |
|---|---|---|---|
| 8 Pins | |||
| RθJA | Junction-to-ambient thermal resistance(1) | 235 | °C/W |
(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
6.5 5V Electrical Characteristics
Unless otherwise specified, all limited ensured for V+ = 5V, V− = 0V, VCM = 0.5V, VO = V+/2, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes.| PARAMETER | TEST CONDITIONS | TYP(1) | LIMIT(2) | UNIT | |
|---|---|---|---|---|---|
| VOS | Input Offset Voltage | VCM = 0.5V & VCM = 4.5V | +/−0.7 | +/−5 +/− 7 |
mV max |
| TC VOS | Input Offset Average Drift | VCM = 0.5V & VCM = 4.5V(3) | +/−2 | — | µV/°C |
| IB | Input Bias Current | See (4) | — | ±2.00 ±2.70 |
µA max |
| IOS | Input Offset Current | 20 | 250 400 |
nA max |
|
| CMRR | Common Mode Rejection Ratio | VCM stepped from 0V to 5V | 80 | 64 61 |
dB min |
| +PSRR | Positive Power Supply Rejection Ratio | V+ from 4.5V to 13V | 100 | 78 74 |
dB min |
| CMVR | Input Common-Mode Voltage Range | CMRR > 50dB | −0.3 | −0.1 0.0 |
V max |
| 5.3 | 5.1 5.0 |
V min |
|||
| AVOL | Large Signal Voltage Gain | VO = 0.5 to 4.5V, RL = 10kΩ to V+/2 |
80 | 64 60 |
dB min |
| VO | Output Swing High |
RL = 10kΩ to V− | 4.93 | 4.85 | V min |
| ISOURCE = 5mA | 4.85 | 4.70 | |||
| Output Swing Low |
RL = 10kΩ to V+ | 215 | 250 | mV max |
|
| ISINK = 5mA | 300 | 350 | |||
| ISC | Output Short Circuit Current | Sourcing to V−
VID = 200mV(5) |
100 | — | mA |
| Sinking to V+
VID = −200mV(5) |
100 | — | |||
| IOUT | Output Current | VID = ±200mV, VO = 1V from rails | ±55 | — | mA |
| IS | Supply Current (Both Channel) | No load, VCM = 0.5V | 1.8 | 2.3 2.8 |
mA max |
| SR | Slew Rate(6) | AV = +1, VI = 5VPP | 12 | — | V/µs |
| fu | Unity Gain Frequency | VI = 10mVp, RL = 2KΩ to V+/2 | 7.5 | — | MHz |
| GBWP | Gain-Bandwidth Product | f = 50KHz | 13 | — | MHz |
| Phim | Phase Margin | VI = 10mVp, RL = 2kΩ to V+/2 | 55 | — | deg |
| en | Input-Referred Voltage Noise | f = 2KHz, RS = 50Ω | 15 | — | nV/√Hz |
| in | Input-Referred Current Noise | f = 2KHz | 1.4 | — | pA/√Hz |
| fmax | Full Power Bandwidth | ZL = (20pF || 10kΩ) to V+/2 | 700 | — | kHz |
(1) Typical Values represent the most likely parametric norm.
(2) All limits are ensured by testing or statistical analysis.
(3) Offset voltage average drift determined by dividing the change in VOS at temperature extremes into the total temperature change.
(4) Positive current corresponds to current flowing into the device.
(5) Short circuit test is a momentary test. Output short circuit duration is infinite for VS ≤ 6V at room temperature and below. For VS > 6V, allowable short circuit duration is 1.5ms.
(6) Slew rate is the slower of the rising and falling slew rates. Connected as a Voltage Follower.
6.6 12V Electrical Characteristics
Unless otherwise specified, all limited ensured for V+ = 12V, V− = 0V, VCM = 6V, VO = 6V, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes.| PARAMETER | TEST CONDITIONS | TYP(1) | LIMIT(2) | UNIT | |
|---|---|---|---|---|---|
| VOS | Input Offset Voltage | VCM = 0.5V & VCM = 11.5V | +/−0.7 | +/−7 +/− 9 |
mV max |
| TC VOS | Input Offset Average Drift | VCM = 0.5V & VCM = 11.5V(4) | +/−2 | — | µV/°C |
| IB | Input Bias Current | See (4) | — | ±2.00 ±2.80 |
µA max |
| IOS | Input Offset Current | 30 | 275 550 |
nA max |
|
| CMRR | Common Mode Rejection Ratio | VCM stepped from 0V to 12V | 88 | 74 72 |
dB min |
| +PSRR | Positive Power Supply Rejection Ratio | V+ from 4.5V to 13V, VCM = 0.5V | 100 | 78 74 |
dB min |
| −PSRR | Negative Power Supply Rejection Ratio | 85 | — | dB | |
| CMVR | Input Common-Mode Voltage Range | CMRR > 50dB | −0.3 | −0.1 0 |
V max |
| 12.3 | 12.1 12.0 |
V min |
|||
| AVOL | Large Signal Voltage Gain | VO = 1V to 11V RL = 10kΩ to V+/2 |
83 | 74 70 |
dB min |
| VO | Output Swing High |
RL 10kΩ to V+/2 | 11.8 | 11.7 | V min |
| ISOURCE = 5mA | 11.6 | 11.5 | |||
| Output Swing Low |
RL = 10kΩ to V+/2 | 0.25 | 0.3 | V max |
|
| ISINK = 5mA | .40 | .45 | |||
| ISC | Output Short Circuit Current | Sourcing to V−
VID = 200mV (3) |
130 | 110 | mA min |
| Sinking to V+
VID = 200mV (3) |
130 | 110 | |||
| IOUT | Output Current | VID = ±200mV, VO = 1V from rails | ±65 | — | mA |
| IS | Supply Current (Both Channel) | No load, VCM = 0.5V | 1.9 | 2.4 2.9 |
mA max |
| SR | Slew Rate(5) | AV = +1, VI = 10VPP, CL = 10pF | 15 | — | V/µs |
| AV = +1, VI = 10VPP, CL = 0.1µF | 1 | — | |||
| ROUT | Close Loop Output Resistance | AV = +1, f = 100KHz | 3 | — | Ω |
| fu | Unity Gain Frequency | VI = 10mVp, RL = 2kΩ to V+/2 | 8 | — | MHz |
| GBWP | Gain-Bandwidth Product | f = 50KHz | 15 | — | MHz |
| Phim | Phase Margin | VI = 10mVp, RL = 2kΩ to V+/2 | 57 | — | Deg |
| GM | Gain Margin | VI = 10mVp, RL = 2kΩ to V+/2 | 20 | — | dB |
| −3dB BW | Small Signal -3db Bandwidth | AV = +1, RL = 2kΩ to V+/2 | 12.5 | — | MHz |
| AV = +1, RL = 600Ω to V+/2 | 10.5 | — | |||
| AV = +10, RL = 600Ω to V+/2 | 1.0 | — | |||
| en | Input-Referred Voltage Noise | f = 2KHz, RS = 50Ω | 15 | — | nV/√Hz |
| in | Input-Referred Current Noise | f = 2KHz | 1.4 | — | pA/√Hz |
| fmax | Full Power Bandwidth | ZL = (20pF || 10kΩ) to V+/2 | 300 | — | kHz |
| THD+N | Total Harmonic Distortion +Noise | AV = +2, RL = 2kΩ to V+/2 VO = 8VPP, VS = ±5V |
0.02% | — | |
| CT Rej. | Cross-Talk Rejection | f = 5MHz, Driver RL = 10kΩ to V+/2 | 68 | — | dB |
(1) Typical Values represent the most likely parametric norm.
(2) All limits are ensured by testing or statistical analysis.
(3) Short circuit test is a momentary test. Output short circuit duration is infinite for VS ≤ 6V at room temperature and below. For VS > 6V, allowable short circuit duration is 1.5ms.
(4) Offset voltage average drift determined by dividing the change in VOS at temperature extremes into the total temperature change.
(5) Slew rate is the slower of the rising and falling slew rates. Connected as a Voltage Follower.
6.7 Typical Performance Characteristics
for Various Supplies
for Various Gains
(1% Distortion)
for Various CL
for Various Frequency
for Various Gains
for Various RL
(1% Distortion)
A.
Figure 26. VOUT from V+ vs. ISOURCE
for Various Cap Loads
