Datasheet

LTC2057/LTC2057HV
32
2057f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com/LTC2057
 LINEAR TECHNOLOGY CORPORATION 2013
LT 0513 • PRINTED IN USA
relaTeD parTs
Typical applicaTion
PART NUMBER DESCRIPTION COMMENTS
LTC2050HV Zero-Drift Operational Amplifier 3µV V
OS
, 2.7V to 12V V
S
, 1.5mA I
S
, RR Output
LTC2051HV/
LTC2052HV
Dual/Quad, Zero-Drift Operational Amplifier 3µV V
OS
, 2.7V to 12V V
S
, 1.5mA I
S
, RR Output
LTC2053 Precision, Rail-to-Rail, Zero-Drift, Resistor-Programmable
Instrumentation Amplifier
10µV V
OS
, 2.7V to 11V V
S
, 1.3mA I
S
, RRIO
LTC2054HV/
LTC2055HV
Micropower, Single/Dual, Zero-Drift Operational Amplifier 5µV V
OS
, 2.7V to 12V V
S
, 0.2mA I
S
, RRIO
LTC6652 Precision, Low Drift, Low Noise, Buffered Reference 5ppm/°C, 0.05% Initial Accuracy, 2.1ppm
P-P
Noise
LT6654 Precision, Wide Supply, High Output Drive, Low Noise Reference 10ppm/°C, 0.05% Initial Accuracy, 1.6ppm
P-P
Noise
LTC6655 0.25ppm Noise, Low Drift, Precision, Buffered Reference Family 2ppm/°C, 0.025% Initial Accuracy, 0.25ppm
P-P
Noise
LT6016/LT6017 Dual/Quad, 76V Over-The-Top
®
Input Operational Amplifier 50µV V
OS
, 3V to 50V V
S
, 0.335mA I
S
, RRIO
LTC6090 140V Operational Amplifier 50pA I
B
, 1.6mV V
OS
, 9.5V to 140V V
S
, 4.5mA I
S
, RR Output
LT5400 Quad Matched Resistor Network ±0.01%, ±0.2ppm/°C Matching
Microvolt Precision 18-Bit ADC Driver
+
–
5V
–5V
–5V
2.5V 1.8V
10k
10Ω
1%
150Ω
205Ω
50mV
0V
LTC2057
2057 TA10
10nF
1µF
100k
1%
SAMPLE
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
+IN
–IN
V
DD
REF
OV
DD
GND
0.1µF10µF
LTC6655-2.5
LTC2368-18
GND
V
IN
SHDN
V
OUT_F
V
OUT_S
47µF
5V
A
V
= 50
BW = 1kHz
≤ 5 ksps IS RECOMMENDED TO
MINIMIZE ERROR FROM ADC INPUT
CURRENT AND 150Ω RESISTOR.
RESISTOR DIVIDER AT ADC INPUT ENSURES LIVE
ZERO OPERATION BY ACCOUNTING FOR 5µV
MAXIMUM V
OS
OF THE LTC2057 AND 11LSB
ZERO-SCALE ERROR OF THE ADC. RESULTING
OFFSET IS CONSTANT AND CAN BE SUBTRACTED
FROM THE RESULT.