LOG114 Datasheet, PDF (2/30 Pages) Burr-Brown (TI) – Single-Supply, High-Speed, Precision LOGARITHMIC AMPLIFIER

LOG114
SBOS301A − MAY 2004 − REVISED MARCH 2007
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
Supply Voltage, V+ to V− . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Signal Input Terminals, Voltage⁽²⁾ . . . . . (V−) −0.5V to (V+) + 0.5V
Current⁽²⁾ . . . . . . . . . . . . . . . . . . . . ±10mA
Output Short-Circuit⁽³⁾ . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . −40°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . −55°C to +125°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
ESD Rating (Human Body Model) . . . . . . . . . . . . . . . . . . . . 2000V
(1) _{Stresses above these ratings may cause permanent damage.}
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only, and
functional operation of the device at these or any other conditions
beyond those specified is not implied.
(2) _{Input terminals are diode-clamped to the power-supply rails.}
Input signals that can swing more than 0.5V beyond the supply
rails should be current-limited to 10mA or less.
(3) _{Short-circuit to ground.}
www.ti.com
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
PRECISION CURRENT MEASUREMENT
PRODUCTS
FEATURES
Logarithmic Transimpedance Amplifier, 5V, Eight Decades
Logarithmic Transimpedance, 36V, 7.5 Decades
Resistor-Feedback Transimpedance, 5V, 5.5 Decades
Switched Integrator Transimpedance, Six Decades
Direct Digital Converter, Six Decades
PRODUCT
LOG114
LOG112
OPA380,
OPA381
IVC102
DDC112
ORDERING INFORMATION⁽¹⁾
PRODUCT
PACKAGE-LEAD
PACKAGE DESIGNATOR
PACKAGE MARKING
LOG114
QFN-16
RGV
LOG114
(1) _{For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site}
at www.ti.com.
PIN CONFIGURATION
Top View
QFN-16
16 15 14 13
V_{REF GND} 1
NC 2
I₂ 3
I₁ 4
Exposed
thermal
die pad on
underside
(Must be
connected to V−)
12 V_O4
11 −IN₄
10 +IN₄
9 V_LOGOUT
5678
QFN−16 (4mm x 4mm)
NC = No Connection
2