R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
说明
应用
OPA4388系列精密运算放大器是超低噪声、快速稳
定、零漂移、零交叉 器件,可实现轨至轨输入和输出
运行。这些特性及出色 的交流性能与仅为 0.25µV 的失
•
•
•
•
•
•
•
调电压以及 0.005µV/°C 的温漂相结合,使得
OPA4388 成为驱 动 高精密模数转换器 (ADC) 或缓
冲高分辨率数模转 换器 (DAC) 输出的理想选择。该设
计在驱动模数转换 器 (ADC) 时具有出色的性能,而不
会降低线性度。
商用网络和服务器 PSU
笔记本电脑电源适配器设计
称重计
实验室和现场仪表
电池测试
电子温度计
温度变送器
特性
•
•
•
•
•
•
•
•
•
•
•
超低失调电压:±0.25µV
零漂移:±0.005µV/°C
零交叉:140dB CMRR 真正 RRIO
低噪声:7.0nV√Hz (1kHz 时)
无 1/f 噪声:140nVPP(0.1Hz 至 10Hz)
快速稳定:2µs(1V,0.01%)
增益带宽:10MHz
单电源:2.5V 至 5.5V
双电源:±1.25V 至 ±2.75V
真正的轨至轨输入和输出
EMI/RFI 滤波输入
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1
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Pin Configuration and Functions
OUT A
1
14
OUT D
±IN A
2
13
±IN D
+IN A
3
12
+IN D
V+
4
11
V±
+IN B
5
10
+IN C
±IN B
6
9
±IN C
OUT B
7
8
OUT C
图 5-4. OPA4388 SOP-14 (D) and TSSOP-14
(PW) Packages, Top View
Pin Functions:OPA4388
NAME
–IN A
OPA4388
(SOP-14)
(TSSOP-14)
I/O
2
I
DESCRIPTION
Inverting input, channel A
–IN B
6
I
Inverting input, channel B
–IN C
9
I
Inverting input, channel C
–IN D
13
I
Inverting input, channel D
+IN A
3
I
Noninverting input, channel A
+IN B
5
I
Noninverting input, channel B
+IN C
10
I
Noninverting input, channel C
+IN D
12
I
OUT A
1
O
Output, channel A
7
O
Output, channel B
OUT C
8
O
Output, channel C
OUT D
14
O
Output, channel D
V–
11
—
Negative (lowest) power supply
V+
4
—
Positive (highest) power supply
OUT B
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2
Noninverting input, channel D
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)(1)
MIN
Supply voltage
Signal input pins
VS = (V+) – (V–)
Voltage
MAX
Single-supply
6
Dual-supply
Common-mode
(V+) + 0.5
(V–) – 0.5
Differential
±10
Operating, TA
(1)
(2)
V
(V+) – (V–) + 0.2
circuit(2)
Temperature
V
±3
Current
Output short
UNIT
Continuous
Continuous
–55
150
Junction, TJ
150
Storage, Tstg
150
–65
mA
°C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under
Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device
reliability.
Short-circuit to ground, one amplifier per package.
ESD Ratings
VALUE
V(ESD)
Electrostatic discharge
Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1)
±4000
Charged-device model (CDM), per JEDEC specification JESD22-C101(2)
±1000
UNIT
V
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
Supply voltage, VS = (V+) – (V–)
Single-supply
Dual-supply
Specified temperature
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3
NOM
MAX
2.5
5.5
±1.25
±2.75
–40
125
UNIT
V
°C
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Thermal Information: OPA4388
OPA4388
THERMAL METRIC(1)
(SOP)
(TSSOP)
UNIT
14 PINS
14 PINS
RθJA
Junction-to-ambient thermal resistance
86.4
109.6
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
46.3
27.4
°C/W
RθJB
Junction-to-board thermal resistance
41.0
56.1
°C/W
ΨJT
Junction-to-top characterization parameter
11.3
1.5
°C/W
ΨJB
Junction-to-board characterization parameter
40.7
54.9
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
N/A
N/A
°C/W
Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V)
at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VS = 5.5 V
VOS
OPA4388
MIN
TYP
MAX
±2.25
±8
Input offset voltage
µV
TA = –40°C to +125°C, VS = 5.5 V OPA4388
dVOS/dT Input offset voltage drift TA = –40°C to +125°C, VS = 5.5 V OPA4388
PSRR
Power-supply rejection
ratio
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UNIT
TA = –40°C to +125°C
OPA4388
4
±10.5
±0.005
±0.05
µV/°C
±1.25
±3.5
µV/V
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER
IB
Input bias current
TEST CONDITIONS
RIN = 100 kΩ, OPA4388
MIN
TYP
MAX
±30
±500
TA = 0°C to +85°C
±600
TA = –40°C to
+125°C
±800
UNIT
pA
±1000
IOS
EN
Input offset current
Input voltage noise
eN
Input voltage noise
density
IN
Input current noise
density
VCM
Common-mode voltage
range
RIN = 100 kΩ, OPA4388
Common-mode
rejection ratio
±1100
TA = –40°C to
+125°C
±1100
f = 0.1 Hz to 10 Hz
0.14
f = 10 Hz
7
f = 100 Hz
7
f = 1 kHz
7
f = 10 kHz
7
f = 1 kHz
µVPP
nV/√Hz
100
(V–) –
0.1
(V–) – 0.1 V < VCM < (V+) + 0.1
V
CMRR
TA = 0°C to +85°C
fA/√Hz
(V+) + 0.1
VS = ±1.25 V
OPA4388
102
110
VS = ±2.75 V
124
140
V
dB
(V–) < VCM < (V+) + 0.1 V,
TA = –40°C to +125°C
VS = ±1.25 V
OPA4388
102
107
(V–) – 0.05 V < VCM < (V+) + 0.1
VS = ±2.75 V
V, TA = –40°C to +125°C
124
140
zid
Differential input
impedance
100 || 2
MΩ || pF
zic
Common-mode input
impedance
60 || 4.5
TΩ || pF
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友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
at TA = 25°C, VCM = VOUT = VS / 2, and RLOAD = 10 kΩ connected to VS / 2 (unless otherwise noted)
PARAMETER
AOL
TEST CONDITIONS
MIN
TYP
(V–) + 0.15 V < VO < (V+) – 0.15 V, RLOAD = 10 kΩ
126
148
(V–) + 0.15 V < VO < (V+) – 0.15
OPA4388
V, RLOAD = 10 kΩ, VS = 5.5 V
TA = –40°C to +125°C
120
126
(V–) + 0.25 V < VO < (V+) – 0.25 V, RLOAD = 2 kΩ
126
148
(V–) + 0.30 V < VO < (V+) – 0.30
OPA4388
V, RLOAD = 2 kΩ, VS = 5.5 V
TA = –40°C to +125°C
120
126
Open-loop voltage gain
Unity-gain bandwidth
SR
Slew rate
G = 1, 4-V step
THD+N
Total harmonic
distortion + noise
G = 1, f = 1 kHz, VO = 1 VRMS
tOR
0.75
µs
To 0.01%
VS = ±2.5 V, G = 1,
1-V step
2
µs
10
µs
VIN × G = VS
Voltage output swing
from rail
1
15
RLOAD = 10 kΩ
5
20
RLOAD = 2 kΩ
20
50
No load
Negative rail
5
15
RLOAD = 10 kΩ
10
20
RLOAD = 2 kΩ
40
60
10
25
TA = –40°C to +125°C, both rails, RLOAD = 10 kΩ
mV
VS = 5.5 V
±60
mA
VS = 2.5 V
±30
mA
100
Ω
ISC
Short-circuit current
CLOAD
Capacitive load drive
See 图 6-26
ZO
Open-loop output
impedance
f = 1 MHz, IO = 0 A, see 图 6-25
VS = ±1.25 V (VS = 2.5 V)
Quiescent current per
amplifier
VS = ±2.75 V (VS = 5.5 V)
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V/µs
VS = ±2.5 V, G = 1,
1-V step
Positive rail
IQ
MHz
5
To 0.1%
No load
VO
10
0.0005%
Settling time
Overload recovery time
UNIT
dB
GBW
tS
MAX
6
IO = 0 A
1.7
2.4
TA = –40°C to
+125°C, IO = 0 A
1.7
2.4
IO = 0 A
1.9
2.6
TA = –40°C to
+125°C, IO = 0 A
1.9
2.6
mA
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
at TA = 25°C, VS = ±2.5 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 100 pF (unless otherwise
noted)
15
50
45
10
Amplifiers (%)
Amplifiers (%)
40
5
35
30
25
20
15
10
5
图 6-1. Offset Voltage Production Distribution
0.05
0.04
0.02
0.01
0
0.03
C001
图 6-2. Offset Voltage Drift Distribution From –
40°C to +125°C
5
5
4
4
3
3
Input Offset Voltage ( V)
Input Offset Voltage ( V)
-0.01
Input Offset Voltage Drift (µV/ƒC)
C002
2
1
0
±1
±2
±3
±4
2
1
0
±1
±2
±3
VCM = ±2.85 V
VCM = 2.85 V
±4
±5
±5
±75
±50
0
±25
25
50
75
100
125
Temperature (ƒC)
150
±3
8
6
Input Offset Voltage (PV)
3
2
1
0
±1
±2
VS = ± 2.75 V
-2
-4
-8
1.2
1.6
1.8
2.0
2.2
2.4
2.6
2.8
Supply Voltage (V)
3.0
C001
VS = r 1.25 V
1.4
1.6
VS = r 2.75 V
1.8
2
2.2
Supply Voltage (V)
2.4
2.6
2.8
C308
图 6-6. Offset Voltage vs Supply Voltage: OPA4388
图 6-5. Offset Voltage vs Supply Voltage
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3
C003
0
-6
1.4
2
2
±5
1.2
1
4
±4
1.0
0
图 6-4. Offset Voltage vs Common-Mode Voltage
4
VS = ± 1.25 V
±1
Input Common-mode Voltage (V)
5
±3
±2
C001
图 6-3. Offset Voltage vs Temperature
Input Offset Voltage ( V)
-0.02
-0.03
-0.05
5
4
3
2
1
0
-1
-2
-3
-4
-5
Input Offset Voltage (µV)
-0.04
0
0
7
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
180
160
Open-Loop Gain
140
15
120
Open-Loop Gain (dB)
10
5
0
-5
-10
Open-Loop Phase
100
90
80
60
45
40
20
0
0
-15
135
Open-Loop Phase (°)
Input Offset Voltage Delta (nV)
20
±20
-45
±40
-20
0
20
40
60
80
Days
100
120
140
1
160
10
100
1k
10k 100k
Frequency (Hz)
C309
1M
10M
C021
3 typical units
图 6-8. Open-Loop Gain and Phase vs Frequency
图 6-7. Offset Voltage Long Term Drift
1500
G = +1
G= +10
G= +100
40
Input Bias Current (pA)
Closed-Loop Gain (dB)
60
20
0
-20
1000
500
0
±500
100
1k
10k
100k
1M
10M
±3
Frequency (Hz)
±2
图 6-9. Closed-Loop Gain and Phase vs Frequency
0
±1
1
2
3
Input Common-mode Voltage (V)
C004
C001
图 6-10. Input Bias Current vs Common-Mode
Voltage
3
1.5
2.5
2
Output Voltage (V)
Input Bias Current (nA)
1.3
1.0
0.8
0.5
0.3
1.5
25°C
1
0.5
0
-0.5
125°C
-1
±40°C
-1.5
-2
ios
-2.5
-3
0.0
±75
±50
±25
0
25
50
75
100
125
150
Temperature (ƒC)
C001
图 6-11. Input Bias Current vs Temperature
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0
10
20
30
40
50
60
Output Current (mA)
70
80
90
100
C001
图 6-12. Output Voltage Swing vs Output Current
(Maximum Supply)
8
友台半导体有限公司
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UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Common-Mode Rejection Ratio (dB)
Common-Mode Rejection Ratio (dB),
Power-Supply Rejection Ratio (dB)
140
120
100
80
60
CMRR
40
+PSRR
20
±PSRR
180
0.001
160
0.01
140
0.1
120
1
100
0
1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
±50 ±25
0.01
140
0.1
120
1
100
75
100 125 150
C001
10
±75
±50
±25
0
25
50
75
100
125
Temperature (ƒC)
Time (1 s/div)
150
C001
图 6-15. PSRR vs Temperature
图 6-16. 0.1-Hz to 10-Hz Noise
Total Harmonic Distortion + Noise (%)
1000
100
10
1
1
10
100
1k
Frequency (Hz)
10k
C002
9
-80
G = -1, 10k- Load
G = -1, 2k- Load
G = -1, 600- Load
G = +1, 10k- Load
G = +1, 2k- Load
G = +1, 600- Load
0.001
-100
0.0001
20
100k
图 6-17. Input Voltage Noise Spectral Density vs
Frequency
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0.01
200
2k
-120
20k
Total Harmonic Distortion + Noise (dB)
Voltage Noise Spectral Density (nV/¥Hz)
50
Input Voltage Noise (50 nV/div)
160
25
图 6-14. CMRR vs Temperature
Power-Supply Rejection Ratio (µV/V)
0.001
0
Temperature (ƒC)
图 6-13. CMRR and PSRR vs Frequency
Power-Supply Rejection Ratio (dB)
10
±75
C004
180
Common-Mode Rejection Ratio (µV/V)
160
Frequency (Hz)
图 6-18. THD+N Ratio vs Frequency
友台半导体有限公司
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OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
0.001
0.0001
0.001
G = -1, 600- Load
G = -1, 2k- Load
G = -1, 10k- Load
G = +1, 600- Load
G = +1, 2k- Load
G = +1, 10k- Load
0.01
-100
-120
0.1
±20
FFT Spectral Content (dBc)
-80
0.01
Total Harmonic Distortion + Noise (dB)
Total Harmonic Distortion + Noise (%)
0
-60
0.1
±40
±60
±80
±100
±120
±140
±160
±180
100
1
Output Amplitude (VRMS)
1k
10k
100k
Frequency (Hz)
C004
C004
G = +1, f = 1 kHz, VO = 4.5 VPP, RL = 10 kΩ, BW = 90 kHz
图 6-19. THD+N vs Output Amplitude
图 6-20. Spectral Content (With 10-kΩ Load)
0
2.5
±40
Quiescent Current (mA)
FFT Spectral Content (dBc)
±20
±60
±80
±100
±120
±140
2
1.5
1
0.5
±160
0
±180
100
1k
10k
100k
Frequency (Hz)
0
0.5
1
1.5
2
2.5
3
Supply Voltage (V)
C004
C001
G = +1, f = 1 kHz, VO = 4.5 VPP, RL = 2 kΩ, BW = 90 kHz
图 6-22. Quiescent Current vs Supply Voltage
图 6-21. Spectral Content (With 2-kΩ Load)
0.001
180
2.5
DC Open-loop Gain (dB)
2
1.5
1
0.5
0.01
160
0.1
140
VS = ± 1.1 V
120
1
100
0
±75
±50
±25
0
25
50
75
100
125
150
Temperature (ƒC)
C001
10
±75
±50
±25
0
25
50
75
100
125
150
Temperature (ƒC)
C001
图 6-24. Open-Loop Gain vs Temperature
图 6-23. Quiescent Current vs Temperature
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DC Open-loop Gain (µV/V)
Quiescent Current (mA)
VS = ± 2.75 V
10
友台半导体有限公司
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OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
100
90
100
G = -1
80
Overshoot (%)
Open-loop Output Impedance (Ÿ)
1k
10
1
70
60
50
40
30
100m
G = +1
20
10m
10
100
1k
10k
100k
1M
10M
100M
Frequency (Hz)
10
100
图 6-25. Open-Loop Output Impedance vs
Frequency
1000
Capacitive Load (pF)
C003
C004
图 6-26. Small-Signal Overshoot vs Capacitive
Load (10-mV Step)
Voltage (1 V/div)
Voltage (1.25 V/div)
VIN
VOUT
Time (45 ms/div)
VOUT
VIN
Time (200 ns/div)
C017
C017
图 6-27. No Phase Reversal
图 6-28. Positive Overload Recovery
VOUT
Voltage (2.5 mV/div)
Voltage (1 V/div)
VIN
VIN
VOUT
Time (2.5 µs/div)
Time (200 ns/div)
C017
C017
G = +1
图 6-29. Negative Overload Recovery
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图 6-30. Small-Signal Step Response (10-mV Step)
11
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OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
VOUT
VIN
VIN
Voltage (1 V/div)
Voltage (2.5 mV/div)
VOUT
Time (500 ns/div)
Time (2.5 µs/div)
C017
C017
Falling output
G = –1
图 6-31. Small-Signal Step Response (10-mV Step)
图 6-32. Large-Signal Step Response (4-V Step)
VOUT
0.01% Settling = “100µV
Voltage (1 V/div)
Output Voltage (100 µV/div)
VIN
Time (500 ns/div)
Time (500 ns/div)
C017
C017
Rising output
0.01% settling = ±100 µV
图 6-33. Large-Signal Step Response (4-V Step)
图 6-34. Settling Time (1-V Positive Step)
100
0.01% Settling = “200µV
ISC, Sink
Short-Circuit Current (mA)
Output Voltage (100 µV/div)
90
80
70
60
50
ISC, Source
40
30
20
10
0
Time (500 ns/div)
±75
C017
±50
±25
0
25
50
75
Temperature (ƒC)
100
125
150
C001
0.01% settling = ±200 µV
图 6-36. Short-Circuit Current vs Temperature
图 6-35. Settling Time (1-V Negative Step)
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UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
7
140
VS = ±2.5V
120
EMIRR IN+ (dB)
Output Voltage (VPP)
6
5
160
Maximum output voltage without
slew-rate induced distortion.
4
3
2
VS = ±0.9V
100
80
60
40
1
20
0
100
1k
10k
100k
Frequency (Hz)
1M
0
10M
10M
C001
100M
1000M
Frequency (Hz)
C004
PRF = –10 dBm
图 6-37. Maximum Output Voltage vs Frequency
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13
图 6-38. EMIRR vs Frequency
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Package Dimension
SOP-14
Dimensions
In Millimeters
Min
Max
1.450
1.850
0.100
0.300
1.350
1.550
0.550
0.750
0.406typ.
0.203typ.
8.630
8.830
5.840
6.240
3.850
4.050
1.270 typ.
1.040 ref.
0.350
0.750
2°
8°
Symbol
A
A1
A2
A3
b
C
D
E
E1
e
L1
L
θ
Dimensions
In Inches
Min
Max
0.059
0.076
0.004
0.012
0.055
0.063
0.022
0.031
0.017typ.
0.008typ.
0.352
0.360
0.238
0.255
0.157
0.165
0.050 typ.
0.041 ref.
0.014
0.031
2°
8°
TSSOP-14
Symbol
A
A1
A2
A3
b
C
D
E
E1
e
L1
L
θ
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14
Dimensions
In Millimeters
Min
Max
1.200
0.050
0.150
0.900
1.050
0.390
0.490
0.200
0.290
0.130
0.180
4.860
5.060
6.200
6.600
4.300
4.500
0.650 typ.
1.000 ref.
0.450
0.750
0°
8°
Dimensions
In Inches
Min
Max
0.0472
0.002
0.006
0.037
0.043
0.016
0.020
0.008
0.012
0.005
0.007
0.198
0.207
0.253
0.269
0.176
0.184
0.0256 typ.
0.0393 ref.
0.018
0.031
0°
8°
友台半导体有限公司
R
UMW
OPA4388
精密、零漂移、零交叉、真正的轨至轨输入/输出运算放大器
Marking
Ordering information
Order code
Package
Baseqty
UMW OPA4388ID
SOP-14
2500
Tape and reel
UMW OPA4388IDR
SOP-14
2500
Tape and reel
UMW OPA4388IPWR
TSSOP-14
4000
Tape and reel
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15
Deliverymode
友台半导体有限公司