鈥?/div>
Wide Supply Range: 2.2V to 36V Total Supply
CMRR at G = 10: 96dB Min
Gain Error: G = 10, 0.25% Max
Gain Nonlinearity: G = 10, 40ppm Max
Input Bias Current: 40nA Max
PSRR at G = 10: 100dB Min
1kHz Voltage Noise: 48nV/鈭欻z
0.1Hz to 10Hz Noise: 1.5碌V
P-P
APPLICATIO S
s
s
s
s
s
s
Portable Instrumentation
Bridge Amplifiers
Strain Gauge Amplifiers
Thermocouple Amplifiers
Differential to Single-Ended Converters
Medical Instrumentation
The LT
廬
1789-1/LT1789-10 are micropower, precision in-
strumentation amplifiers that are optimized for single supply
operation from 2.2V to 36V. The quiescent current is 95碌A(chǔ)
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
nonlinearity 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
instrumentation 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 pack-
age, requiring significantly less PC board area than discrete
multi op amp and resistor designs.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
0.5A to 4A Voltage Controlled Current Source
C1
4700pF
V
S
V
IN
R2
10k
V
S
= 3.3V TO 32V
V
IN
I
LOAD
=
R
SENSE
鈥?10
= 1A PER VOLT AS SHOWN
RISE TIME
鈮?/div>
250碌s, 10% TO 90%,
1A TO 2A OUTPUT STEP INTO 0.25鈩?LOAD
+
3
鈥?/div>
R1
90.9k
V
S
2
7
LT1636
5
4
R4
10k
C2
3300pF
6
C3
0.1碌F
R3
100鈩?/div>
V
S
7
6
REF
1
5
4
8k
120鈩?/div>
TIP127*
+
3
8
3
1
2
4
LT1789-1
鈥?/div>
2
U
* ENSURE ADEQUATE POWER
DISSIPATION CAPABILITY AT
HIGHER VOLTAGES,
CURRENTS AND DUTY CYCLES
R
SENSE
*
0.1鈩?I
LOAD
R
LOAD
*
1789 TA01
U
U
1789f
1
next
LT1789IS8-10 產(chǎn)品屬性
LT1789-1/LT1789-10
100
集成電路 (IC)
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
-
儀表
1
-
0.066 V/µs
25kHz
-
17nA
30µV
85µA
8.5mA
2.2 V ~ 36 V,±1.1 V ~ 18 V
-40°C ~ 85°C
表面貼裝
8-SOIC(0.154",3.90mm 寬)
8-SO
管件
LT1789IS8-10相關(guān)型號(hào)PDF文件下載
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