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OPA454

SBOS391 – DECEMBER 2007

ELECTRICAL CHARACTERISTICS: VS = ±50V (continued)

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

At TP = +25°C, RL = 4.8kΩ to mid-supply, VCM = VOUT = mid-supply, unless otherwise noted.

OPA454

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

FREQUENCY RESPONSE(5)

Gain-Bandwidth Product

GBW

Small-Signal

2.5

MHz

Slew Rate

G = ±1, VO = 80V Step, RL = 3.27kΩ

µs

Full-Power Bandwidth(6)

kHz

Settling Time: ±0.1%(7)

G = ±1, VO = 20V Step

µs

Settling Time: ±0.01%(7)

G = ±5 or ±10, VO = 80V Step

µs

VS = +40.6V/–39.6V, G = ±1,

Total Harmonic Distortion + Noise(8)

THD+N

0.0008

f = 1kHz, VO = 77.2VPP

OUTPUT

Voltage Output Swing From Rail(9)

RL = 49kΩ, AOL ≥ 100dB, IO = 1mA

(V–) + 1

(V+) – 1

RL = 4.8kΩ, AOL ≥ 100dB, IO = 10mA

(V–) + 1

(V+) – 2

RL = 1880Ω, AOL ≥ 80dB, IO = 26mA

(V–) + 2

(V+) – 3

Continuous Current Output, dc

Depends on Circuit Conditions

See Figure 6

Maximum Peak Current Output, Current

+120/–150

Limit(10)

Over Temperature

+140/–170

Capacitive Load Drive(5)

CLOAD

200

Open-Loop Output Impedance

See Figure 5

Ω

Output Disabled

Output Capacitance

Feedthrough Capacitance(11)

150

STATUS FLAG PIN (Referenced to E/D Com)(12)

Status Flag Delay

Enable

→ Disable

µs

Disable

→ Enable

µs

Over-Current Delay(13)

µs

Over-Current Recovery Delay(13)

µs

Junction Temperature

Alarm (status flag high)

+150

°C

Return to Normal Operation (status flag low)

+130

°C

Output Voltage(5)

Normal Operation

E/D Com + 2

RL = 100Ω During Thermal Overdrive,

(V+) – 2.5

Alarm

(5)

See Typical Characteristic curves.

(6)

See typical characteristic curve, Maximum Output Voltage vs Frequency (Figure 12).

(7)

See the Applications Information section, Settling Time.

(8)

Supplies reduced to allow closer swing to rails due to test equipment limitations. See typical characteristic curve Total Harmonic

Distortion + Noise vs Temperature (Figure 30 and Figure 31) for additional power levels.

(9)

See typical characteristic curve, Output Voltage Swing vs Output Current (Figure 11).

(10) Measured using low-frequency (<10Hz) ±49V square wave. See typical characteristic curve, Current Limit vs Temperature (Figure 24).

(11) Measured using Figure 1.

(12) 100k

Ω pull-up resistor to (V+). E/D common to (V–). Status flag indicates an over temperature or over-current condition.

(13) See Typical Characteristic curves for current limit behavior.

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