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LT1789CS8-10-TR

LT1789CS8-10-TR首页预览图
型号: LT1789CS8-10-TR
PDF文件:
  • LT1789CS8-10-TR PDF文件
  • LT1789CS8-10-TR PDF在线浏览
功能描述: Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifiers
PDF文件大小: 332.09 Kbytes
PDF页数: 共24页
制造商: LINER[Linear Technology]
制造商LOGO: LINER[Linear Technology] LOGO
制造商网址: http://www.linear.com
捡单宝
PDF页面索引
100%
LT1789-1/LT1789-10
1
1789fc
The LT
®
1789-1/LT1789-10 are micropower, precision
instrumentation amplifiers that are optimized for single
supply operation from 2.2V to 36V. The quiescent current
is 95μA max, the inputs common mode to ground and the
output swings within 110mV of ground. The gain is set
with a single external resistor for a gain range of 1 to 1000
for the LT1789-1 and 10 to 1000 for the LT1789-10.
The high accuracy of the LT1789-1 (40ppm maximum non-
linearity and 0.25% max gain error) is unmatched by other
micropower instrumentation amplifiers. The LT1789-10
maximizes both the input common mode range and dynamic
output range when an amplification of 10 or greater is required,
allowing precise signal processing where other instrumenta-
tion amplifiers fail to operate. The LT1789-1/LT1789-10 are
laser trimmed for very low input offset voltage, low input
offset voltage drift, high CMRR and high PSRR. The output
can handle capacitive loads up to 400pF (LT1789-1), 1000pF
(LT1789-10) in any gain configuration while the inputs are
ESD protected up to 10kV (human body).
The LT1789-1/LT1789-10 are offered in the 8-pin SO
package, requiring significantly less PC board area than
discrete multi op amp and resistor designs.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Micropower,
Single Supply Rail-to-Rail
Output Instrumentation Amplifiers
0.5A to 4A Voltage Controlled Current Source
n
Micropower: 95μA Supply Current Max
n
Low Input Offset Voltage: 100μV Max
n
Low Input Offset Voltage Drift: 0.5μV/°C Max
n
Single Gain Set Resistor:
G = 1 to 1000 (LT1789-1)
G = 10 to 1000 (LT1789-10)
n
Inputs Common Mode to V
n
Wide Supply Range: 2.2V to 36V Total Supply
n
CMRR at G = 10: 96dB Min
n
Gain Error: G = 10, 0.25% Max
n
Gain Nonlinearity: G = 10, 40ppm Max
n
Input Bias Current: 40nA Max
n
PSRR at G = 10: 100dB Min
n
1kHz Voltage Noise: 48nV/√Hz
n
0.1Hz to 10Hz Noise: 1.5μV
P-P
n
Portable Instrumentation
n
Bridge Amplifiers
n
Strain Gauge Amplifiers
n
Thermocouple Amplifiers
n
Differential to Single-Ended Converters
n
Medical Instrumentation
5
7
V
S
4
* ENSURE ADEQUATE POWER
DISSIPATION CAPABILITY AT
HIGHER VOLTAGES,
CURRENTS AND DUTY CYCLES
I
LOAD
R
LOAD
*
1789 TA01
R
SENSE
*
0.1Ω
TIP127*
6
3
2
R4
10k
C2
3300pF
R3
100Ω
C3
0.1μF
2
1
3
8
C1
4700pF
V
IN
7
R2
10k
6
V
S
4
5
R1
90.9k
4
3
2
1
+
120Ω
8k
V
S
V
S
= 3.3V TO 32V
= 1A PER VOLT AS SHOWN
I
LOAD
=
RISE TIME ≈ 250μs, 10% TO 90%,
1A TO 2A OUTPUT STEP INTO 0.25Ω LOAD
V
IN
R
SENSE
• 10
LT1636
+
REF
LT1789-1
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