鈮?/div>
10
Wide Supply Range: 3V to 12.6V
Output Swings Rail-to-Rail
Common Mode Rejection Ratio 115dB Typ
Output Current: 30mA
Operating Temperature Range 鈥?40擄C to 85擄C
LT6230 Shutdown to 10碌A(chǔ) Maximum
LT6230/LT6230-10 in SOT-23 Package
Dual LT6231 in 8-Pin SO and Tiny DFN Packages
LT6232 in 16-Pin SSOP Package
The LT
廬
6230/LT6231/LT6232 are single/dual/quad low
noise, rail-to-rail output unity gain stable op amps that
feature 1.1nV/鈭欻z noise voltage and draw only 3.5mA of
supply current per amplifier. These amplifiers combine
very low noise and supply current with a 215MHz gain
bandwidth product, a 70V/碌s slew rate and are optimized
for low supply voltage signal conditioning systems. The
LT6230-10 is a single amplifier optimized for higher gain
applications resulting in higher gain bandwidth and slew
rate. The LT6230 and LT6230-10 include an enable pin
that can be used to reduce the supply current to less than
10碌A(chǔ).
The amplifier family has an output that swings within
50mV of either supply rail to maximize the signal dynamic
range in low supply applications and is specified on 3.3V,
5V and
鹵5V
supplies. The e
n
鈥?/div>
鈭欼
SUPPLY
product of 1.9 per
amplifier is among the most noise efficient of any op amp.
The LT6230/LT6230-10 is available in the 6-lead SOT-23
package and the LT6231 dual is available in the 8-pin SO
package with standard pinouts. For compact layouts, the
dual is also available in a tiny dual fine pitch leadless
package (DFN). The LT6232 is available in the 16-pin
SSOP package.
APPLICATIO S
s
s
s
s
s
Ultrasound Amplifiers
Low Noise, Low Power Signal Processing
Active Filters
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
V
S+
IN
+
Low Noise Low Power Instrumentation Amplifier
+
1/2 LT6231
R4
499鈩?/div>
R2
196鈩?/div>
V
S+
R6
499鈩?/div>
NOISE VOLTAGE (nV/鈭欻z)
6
5
4
3
Noise Voltage and Unbalanced
Noise Current vs Frequency
6
V
S
=
鹵2.5V
T
A
= 25擄C
V
CM
= 0V
5
4
3
NOISE CURRENT
2
1
2
1
鈥?/div>
R1
10鈩?/div>
+
LT6202
V
OUT
鈥?/div>
鈥?/div>
IN
鈥?/div>
R3
196鈩?/div>
R5
499鈩?/div>
V
S鈥?/div>
R7
499鈩?/div>
1/2 LT6231
+
V
S鈥?/div>
A
V
= 40
BW = 5.1MHz
V
S
=
鹵1.5V
to
鹵5V
I
S
= 10mA
E
N
= 5.8碌V
RMS
INPUT REFERRED,
MEASUREMENT BW = 8MHz
623012 TA01a
0
10
U
UNBALANCED NOISE CURRENT (pA/鈭欻z)
NOISE VOLTAGE
100
1k
10k
FREQUENCY (Hz)
0
100k
623012 TA01b
U
U
sn623012 623012fas
1
next
LT6231IS8 產(chǎn)品屬性
LT6230(-10),31,32
100
集成電路 (IC)
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
-
通用
2
滿擺幅
70 V/µs
215MHz
-
5µA
50µV
3.3mA
30mA
3 V ~ 12.6 V,±1.5 V ~ 6.3 V
-40°C ~ 85°C
表面貼裝
8-SOIC(0.154",3.90mm 寬)
8-SO
管件
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