Datasheet

OPA569
SBOS264A
3
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V to +5.5V
Boldface limits apply over the specified temperature range, T
A
= –40°C to +85°C.
At T
CASE
= +25°C, R
L
= 1kΩ, and connected to V
S
/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 A
OL
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) I
LIMIT
is the value of the desired current limit
and is equal to 9800 (I
SET
), where I
SET
is the current through the Current Limit Set pin (pin 3). Errors from this parameter can be calibrated out—see Applications
Information section. (8) V
SET
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 = [(I
OUT
/475) – I
MONITOR
] • 100/I
MONITOR
.
OPA569
PARAMETER CONDITION MIN TYP MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage V
OS
I
O
= 0V, V
S
= +5V ±0.5 ±2mV
vs Temperature dV
OS
/dT T
A
= –40°C to +85°C ±1.3 µV/°C
vs Power Supply PSRR V
S
= +2.7V to +5.5V, V
CM
= (V–) +0.55V 12 60 µV/V
INPUT BIAS CURRENT
Input Bias Current I
B
±1 ±10 pA
vs Temperature (doubles every 10
°C)
Input Offset Current I
OS
±2 ±10 pA
NOISE
Input Voltage Noise Density, f = 1kHz e
n
12 nV/√Hz
f = 0.1Hz to 10Hz 8 µVp-p
Current Noise Density, f = 1kHz i
n
0.6 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
Linear Operation (V–) – 0.1 (V+) + 0.1 V
Common-Mode Rejection Ratio CMRR V
S
= +5V, –0.1V < V
CM
< 3.2V 80 100 dB
V
S
= +5V, –0.1V < V
CM
< 5.1V 60 80 dB
INPUT IMPEDANCE
Differential 10
13
|| 4.5 Ω || pF
Common-Mode 10
13
|| 9 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain A
OL
0.2V < V
O
< 4.8V, R
L
= 1kΩ, V
S
= +5V 100 126 dB
0.3V
< V
O
< 4.7V, R
L
= 1.15Ω, V
S
= +5V 90 dB
FREQUENCY RESPONSE
Gain Bandwidth Product GBW 1.2 MHz
Slew Rate SR G = +1, V
O
= 4.0V Step 1.2 V/µs
Full-Power Bandwidth
(1)
See Typical Characteristics
Settling Time: ±0.1% G = –1, V
O
= 4.0V Step 5 µs
Total Harmonic Distortion + Noise
(2)
THD+N See Typical Characteristics
OUTPUT
Voltage Output Swing from Rail V
O
R
L
= 1kΩ, A
OL
> 100dB (V–) + 0.2 (V
S
) ± 0.02 (V+) – 0.2 V
I
O
= ±2A, V
S
= +5V, A
OL
> 80dB
(3)
(V–) + 0.3 (V
S
) ± 0.15 (V+) – 0.3 V
Maximum Continuous Current Output: dc
(4)
2.4 A
Capacitive Load Drive
(5)
C
LOAD
See Typical Characteristics
Output Disabled
Output Impedance 12M || 570 Ω || pF
CURRENT LIMIT
Output Current Limit
(6)
Externally Adjustable ±0.2 to ±2.2 A
Current Limit Equation I
LIMIT
= I
SET
• 9800 A
R
SET
Equation R
SET
= 9800 (1.18V/I
LIMIT
) Ω
Current Limit Tolerance
(7)
, Positive I
LIMIT
= 1A ±3 ±10 %
Negative I
LIMIT
= 1A ±3 ±15 %
Voltage on Current Limit Set Pin Tolerance
(8)
(V–) + 1.05 (V–) + 1.18 (V–) + 1.3 V
OUTPUT CURRENT MONITOR (Pin 19)
Output Current Monitor I
M
I
M
= I
O
/475 A
Output Current Monitor Tolerance
(9)
, Positive I
O
= +1A, R
MONITOR
= 400Ω±3 ±10 %
Negative I
O
= –1A, R
MONITOR
= 400Ω±3 ±15 %
Compliance Voltage Range Linear Operation See Discussion on Current Monitor Section