OPA569 datasheet(3/28 Pages) TI1

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OPA569

SBOS264A

www.ti.com

ELECTRICAL CHARACTERISTICS: VS = +2.7V to +5.5V

Boldface limits apply over the specified temperature range, TA = –40°C to +85°C.

At TCASE = +25°C, RL = 1kΩ, and connected to VS/2, unless otherwise noted.

NOTES: (1) See typical characteristic “Maximum Output Voltage vs Frequency.” (2) See the typical characteristic “Total Harmonic Distortion + Noise vs Frequency.”

(3) Swing to the rail is measured in final test. Under those conditions, the AOL is derived from characterization. (4) See Safe Operating Area (SOA) plots. (5) See typical

characteristic, “Overshoot vs Load Capacitance.” (6) External current limit setting resistor is required. See Figure 1. (7) ILIMIT is the value of the desired current limit

and is equal to 9800 (ISET), where ISET is the current through the Current Limit Set pin (pin 3). Errors from this parameter can be calibrated out—see Applications

Information section. (8) VSET is a voltage reference that equals the difference between the voltage of the Current Limit Set pin and V–, and is referenced to the negative

rail. Errors from this parameter can be calibrated out—see Applications Information section. (9) % Tolerance = [(IOUT/475) – IMONITOR] • 100/IMONITOR.

OPA569

PARAMETER

CONDITION

MIN

TYP

MAX

UNITS

OFFSET VOLTAGE

Input Offset Voltage

VOS

IO = 0V, VS = +5V

±0.5

±2mV

vs Temperature

dVOS /dT

TA = –40°C to +85°C

±1.3

µV/

°C

vs Power Supply

PSRR

VS = +2.7V to +5.5V, VCM = (V–) +0.55V

µV/V

INPUT BIAS CURRENT

Input Bias Current

±1

±10

vs Temperature

(doubles every 10

°C)

Input Offset Current

IOS

±2

±10

NOISE

Input Voltage Noise Density, f = 1kHz

nV/

√Hz

f = 0.1Hz to 10Hz

µVp-p

Current Noise Density, f = 1kHz

0.6

fA/

√Hz

INPUT VOLTAGE RANGE

Common-Mode Voltage Range

VCM

Linear Operation

(V–) – 0.1

(V+) + 0.1

Common-Mode Rejection Ratio

CMRR

VS = +5V, –0.1V < VCM < 3.2V

100

VS = +5V, –0.1V < VCM < 5.1V

INPUT IMPEDANCE

Differential

1013 || 4.5

Ω || pF

Common-Mode

1013 || 9

Ω || pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain

AOL

0.2V < VO < 4.8V, RL = 1kΩ, VS = +5V

100

126

0.3V < VO < 4.7V, RL = 1.15Ω, VS = +5V

FREQUENCY RESPONSE

Gain Bandwidth Product

GBW

1.2

MHz

Slew Rate

G = +1, VO = 4.0V Step

1.2

µs

Full-Power Bandwidth(1)

See Typical Characteristics

Settling Time:

±0.1%

G = –1, VO = 4.0V Step

µs

Total Harmonic Distortion + Noise(2)

THD+N

See Typical Characteristics

OUTPUT

Voltage Output Swing from Rail

RL = 1kΩ, AOL > 100dB

(V–) + 0.2

(VS) ± 0.02

(V+) – 0.2

IO = ±2A, VS = +5V, AOL > 80dB (3)

(V–) + 0.3

(VS) ± 0.15

(V+) – 0.3

Maximum Continuous Current Output: dc (4)

2.4

Capacitive Load Drive(5)

CLOAD

See Typical Characteristics

Output Disabled

Output Impedance

12M || 570

Ω || pF

CURRENT LIMIT

Output Current Limit (6)

Externally Adjustable

±0.2 to ±2.2

Current Limit Equation

ILIMIT = ISET • 9800

RSET Equation

RSET = 9800 (1.18V/ILIMIT)

Ω

Current Limit Tolerance (7), Positive

ILIMIT = 1A

±3

±10

Negative

ILIMIT = 1A

±3

±15

Voltage on Current Limit Set Pin Tolerance(8)

(V–) + 1.05

(V–) + 1.18

(V–) + 1.3

OUTPUT CURRENT MONITOR (Pin 19)

Output Current Monitor

IM = IO /475

Output Current Monitor Tolerance (9), Positive

IO = +1A, RMONITOR = 400Ω±3

±10

Negative

IO = –1A, RMONITOR = 400Ω±3

±15

Compliance Voltage Range

Linear Operation

See Discussion on Current Monitor Section

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