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參數(shù)資料
| 型號(hào)： | OP293ES-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP 35KHZ DUAL 8SOIC |
| 設(shè)計(jì)資源： | 4 mA-to-20 mA Loop-Powered Temperature Monitor Using ADuC7060/1 (CN0145) |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 通用 |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.015 V/µs |
| 增益帶寬積： | 35kHz |
| 電流 - 輸入偏壓： | 15nA |
| 電壓 - 輸入偏移： | 100µV |
| 電流 - 電源： | 30µA |
| 電流 - 輸出 / 通道： | 25mA |
| 電壓 - 電源，單路/雙路(±)： | 1.7 V ~ 36 V，±0.85 V ~ 18 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
REV. B
OP193/OP293/OP493
–9–
GAIN
–
dB
60
40
10
100
1k
10k
100k
0
–20
TA
25°C
VS
±15V
FREQUENCY – Hz
20
60
50
40
20
10
100
1000
10000
CAPACITIVE LOAD – pF
30
10
0
OVERSHOOT
–
%
VS
5V TA
25°C
AV
1
50mV
VIN
150mV
LOADS TO GND
+OS
RL
+OS
| –OS |
RL
10k
+OS
| –OS |
RL
50k
–OS
RL
TPC 20. Small Signal Overshoot
vs. Capacitive Load
GAIN
–
dB
60
40
100
1k
10k
100k
1M
0
–20
VS
5V
FREQUENCY – Hz
20
PHASE
–40
GAIN
PHASE
–
De
g
rees
90
0
–45
45
–90
FUNCTIONAL DESCRIPTION
The OP193 family of operational amplifiers are single-supply,
micropower, precision amplifiers whose input and output ranges
both include ground. Input offset voltage (VOS) is only 75
V
maximum, while the output will deliver
±5 mA to a load. Sup-
ply current is only 17
A.
A simplified schematic of the input stage is shown in Figure 1.
Input transistors Q1 and Q2 are PNP devices, which permit the
inputs to operate down to ground potential. The input transis-
tors have resistors in series with the base terminals to protect the
junctions from over voltage conditions. The second stage is an
NPN cascode which is buffered by an emitter follower before
driving the final PNP gain stage.
The OP193 includes connections to taps on the input load
resistors, which can be used to null the input offset voltage, VOS.
The OP293 and OP493 have two additional transistors, Q7 and
Q8. The behavior of these transistors is discussed in the Output
Phase Reversal section of this data sheet.
The output stage, shown in Figure 2, is a noninverting NPN
“totem-pole” configuration. Current is sourced to the load by
emitter follower Q1, while Q2 provides current sink capability.
When Q2 saturates, the output is pulled to within 5 mV of
ground without an external pull-down resistor. The totem-pole
output stage will supply a minimum of 5 mA to an external
load, even when operating from a single 3.0 V power supply.
By operating as an emitter follower, Q1 offers a high impedance
load to the final PNP collector of the input stage. Base drive to
Q2 is derived by monitoring Q1’s collector current. Transistor
Q5 tracks the collector current of Q1. When Q1 is on, Q5 keeps
Q4 off, and current source I1 keeps Q2 turned off. When Q1 is
driven to cutoff (i.e., the output must move toward V–), Q5
allows Q4 to turn on. Q4’s collector current then provides the
base drive for Q3 and Q2, and the output low voltage swing is
set by Q2’s VCE,SAT which is about 5 mV.
2k
NULLING
TERMINALS
(OP193 ONLY)
+INPUT
R2A
2k
–INPUT
Q1
Q2
Q7
Q8
Q3
Q4
R2B
R1B
R1A
OP293,
OP493
ONLY
I1
D1
I2
I3
I4
Q5
Q6
TO
OUTPUT
STAGE
I5
I6
V–
V+
Figure 1. OP193/OP293/OP493 Equivalent Input Circuit
Q4
Q1
Q5
Q3
Q2
OUTPUT
I1
I2
I3
FROM
INPUT
STAGE
V+
V–
Figure 2. OP193/OP293/OP493 Equivalent Output Circuit
TPC 19. Closed-Loop Gain vs.
Frequency, VS =
±15 V
TPC 21. Open-Loop, Gain and
Phase vs. Frequency
GAIN
–
dB
60
40
100
1k
10k
100k
1M
0
–20
VS
±15V
FREQUENCY – Hz
20
PHASE
–40
GAIN
PHASE
–
De
g
rees
90
0
–45
45
–90
TPC 22. Open-Loop, Gain and
Phase vs. Frequency
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OP293ES-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Dual GP 制造商:Analog Devices 功能描述:OP Amp Dual GP ±18V/36V 8-Pin SOIC N T/R |
| OP293ESZ | 功能描述:IC OPAMP GP 35KHZ DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| OP293ESZ | 制造商:Analog Devices 功能描述:IC, OP-AMP, 35KHZ, 0.015V/ us, SOIC-8 |
| OP293ESZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Precision, Micropower Operational Amplifiers |
| OP293ESZ-REEL | 功能描述:IC OPAMP GP 35KHZ DUAL 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
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