LTC1541CDD Datasheet, PDF (6/12 Pages) Linear Technology – Micropower Op Amp, Comparator and Reference

LTC1541/LTC1542
ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_CC = 3V, V_SS = 0V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
I_SOURCE
Output Source Current
0.6 0.95
mA
● 0.4
mA
I_SINK
Output Sink Current
1.2 1.8
mA
● 0.8
mA
e_n
Input Noise Voltage
f_O = 0.1Hz to 10Hz
3
µV_P-P
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Supply current is tested with COMPIN⁺ = (REF – 100mV) for
LTC1541 and COMPIN⁺ = 0V, COMPIN^– = 100mV for LTC1542.
Note 3: Input offset voltage is defined as the center of the input referred
hysteresis, V_CM = REF (LTC1541). V_CM = 1/2 V_CC (LTC1542).
Note 4: Trip point is defined as the differential input voltage required to
make the comparator output change state. The difference between upper
and lower trip point is equal to the width of the input referred hysteresis,
V_CM = REF (LTC1541). V_CM = 1/2 V_CC (LTC1542).
Note 5: The input leakage current is measured for COMPIN⁺ at 0V
(LTC1541) and COMPIN⁺ = COMPIN^– = 0V (LTC1542).
Note 6: The θ_JA specified for the DD package is with minimal PCB heat
spreading metal. Using expanded metal area on all layers of a board
reduces this value.
Note 7: The LTC1541C/LTC1541I and LTC1542C/LTC1542I are
guaranteed functional over the operating temperature range of –40°C to
85°C.
Note 8: The LTC1541C and LTC1542C are guaranteed to meet specified
performance from 0°C to 70°C. The LTC1541C and LTC1542C are
designed, characterized and expected to meet performance from –40°C to
85°C, but are not tested or QA sampled at these temperatures. The
LTC1541I and LTC1542I are guaranteed to meet specified performance
from –40°C to 85°C.
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
10
9 NONINVERTING
8
V_SS = GND
AMPIN⁺ = V_CC /2
7
6
5
4
3
2
1
0
2 3 4 5 6 7 8 9 10 11 12
SUPPLY VOLTAGE (V)
1541/42 TPC01
Supply Current vs Temperature
10
9
V_CC = 5V
V_SS = GND
AMPIN^– = AMPOUT
8 _{AMPIN+ = 2.5V}
7
6
5
4
3
2
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1541/42 TPC02
Reference Output Voltage vs
Load Current
1.205
1.204
1.203
1.202
V_CC = 5V
V_SS = GND
SOURCING
CURRENT
1.201
1.200
1.199
1.198
1.197
1.196
SINKING
CURRENT
1.195
1
10
100
1000
LOAD CURRENT (µA)
10000
1541/42 TPC03
15412fd
6