TLC2551 Datasheet, PDF (8/23 Pages) Texas Instruments – 5 V, LOW POWER, 12-BIT, 400 KSPS, SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN

TLC2551, TLC2552, TLC2555
5 V, LOW POWER, 12-BIT, 400 KSPS,
SERIAL ANALOG-TO-DIGITAL CONVERTERS WITH AUTOPOWER DOWN
SLAS276 –MARCH 2000
absolute maximum ratings over operating free-air temperature (unless otherwise noted)^†
Supply voltage range, GND to V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6.5 V
Analog input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V_DD + 0.3 V
Reference input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V_DD + 0.3 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V_DD+ 0.3 V
Operating virtual junction temperature range, T_J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 150°C
Operating free-air temperature range, T_A: C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
MIN NOM MAX UNIT
Supply voltage, VDD
Positive external reference voltage input, VREFP (see Note 1)
Analog input voltage (see Note 1)
High level control input voltage, VIH
Low-level control input voltage, VIL
Setup time, CS falling edge (for 2551) or CS/FS falling edge (for
2552/55) before first SCLK falling edge, tsu(CSL-SCLKL)
VDD = REF = 5.5 V
Hold time, CS rising edge after SCLK falling edge, th(SCLKL-CSH)
Delay time, delay from CS falling edge to FS rising edge (td(CSL-FSH)
Setup time, FS rising edge before SCLK falling edge, tsu(FSH-SCLKL)
Hold time, FS hold high after SCLK falling edge, th(SCLKL-FSL)
Pulse width CS high time, twH(CS)
Pulse width FS high time, twH(FS)
SCLK cycle time, VDD = 5.5–4.5 V, tc(SCLK)
Pulse width low time, twL(SCLK)
Pulse width high time, twH(SCLK)
Hold time, hold from end of conversion to CS high, th(EOC-CSH) (EOC is internal, indicates end of
conversion time, tc)
Active CS/FS cycle time to reset internal MUX to AIN0, reset cycle TLC2552 only
2.7 3.3
5.5
V
2
VDD
V
0
VDD
V
2.1
V
0.6
V
40
ns
5
ns
0.5
7 SCLKs
0.35
SCLKs
0.65 SCLKs
100
ns
0.75
SCLKs
50
10000
ns
0.4
0.6 SCLKs
0.4
0.6 SCLKs
0.1
µs
4
7 SCLKs
Operating free-air temperature, TA
TLC2551/2/5C
TLC2551/2/5I
0
70
°C
–40
85
NOTES: 1. Analog input voltages greater than that applied to VREF convert as all ones (111111111111), while input voltages less than that
applied to GND convert as all zeros(000000000000).
2. This is the time required for the clock input signal to fall from VIH max or to rise from VILmax to VIHmin. In the vicinity of normal room
temperature, the devices function with input clock transition time as slow as 1 µs for remote data-acquisition applications where the
sensor and A/D converter are placed several feet away from the controlling microprocessor.
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