Datasheet

LTC2301/LTC2305
3
23015fb
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2305IMS#PBF LTC2305IMS#TRPBF 2305 12-Lead Plastic MSOP –40°C to 85°C
LTC2305HMS#PBF LTC2305HMS#TRPBF 2305 12-Lead Plastic MSOP –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi
cations, go to: http://www.linear.com/tapeandreel/
CONVERTER AND MULTIPLEXER CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes)
l 12 Bits
Integral Linearity Error (Note 5)
l
±0.4 ±1 LSB
Differential Linearity Error
l
±0.3 ±1 LSB
Bipolar Zero Error (Note 6)
l
±0.5 ±8 LSB
Bipolar Zero Error Drift 0.002 LSB/°C
Unipolar Zero Error (Note 6)
l
±0.7 ±6 LSB
Unipolar Zero Error Drift 0.002 LSB/°C
Unipolar Zero Error Match (LTC2305) ±0.1 ±1 LSB
Bipolar Full-Scale Error External Reference (Note 7)
REFCOMP = 4.096V (Note 7)
l
l
±1
±0.9
±10
±9
LSB
LSB
Bipolar Full-Scale Error Drift External Reference 0.05 LSB/°C
Unipolar Full-Scale Error External Reference (Note 7)
REFCOMP = 4.096V (Note 7)
l
l
±0.5
±0.7
±10
±6
LSB
LSB
Unipolar Full-Scale Error Drift External Reference 0.05 LSB/°C
Unipolar Full-Scale Error Match (LTC2305) ±0.1 ±2 LSB
ANALOG INPUT
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
+ Absolute Input Range (CH0, CH1, IN
+
) (Note 8)
l
–0.05 REFCOMP V
V
IN
– Absolute Input Range (CH0, CH1, IN
–
) Unipolar (Note 8)
Bipolar (Note 8)
l
–0.05
–0.05
0.25 • REFCOMP
0.75 • REFCOMP
V
V
V
IN
+ – V
IN
– Input Differential Voltage Range V
IN
= V
IN
+ – V
IN
– (Unipolar)
V
IN
= V
IN
+ – V
IN
– (Bipolar)
l
0 to REFCOMP
±REFCOMP/2
V
V
I
IN
Analog Input Leakage Current
l
±1 µA
C
IN
Analog Input Capacitance Sample Mode
Hold Mode
55
5
pF
pF
CMRR Input Common Mode Rejection Ratio 70 dB
The l denotes the specifi cations which apply over the full operating temperature range, otherwise
specifi cations are at T
A
= 25°C. (Note 4)