參數(shù)資料
型號： 5962-9957001Q2A
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CQCC20
封裝： CERAMIC, LCC-20
文件頁數(shù)： 15/43頁
文件大?。?/td> 989K
代理商： 5962-9957001Q2A
TLV2544Q, TLV2548Q, TLV2548M
3V TO 5.5V, 12BIT, 200KSPS, 4/8CHANNEL, LOW POWER
SERIAL ANALOGTODIGITAL CONVERTERS WITH AUTOPOWERDOWN
SGLS119F FEBRUARY 2002 REVISED OCTOBER 2009
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (continued)
MIN
NOM
MAX
UNIT
Delay time, delay from CSTART rising edge to CSTART falling edge,
td(CSTARTH-CSTARTL)
Max t(conv)
s
Delay time, delay from CSTART rising edge to INT falling edge, td(CSTARTH-INTL)
Max t(conv)
s
Operating free-air temperature, TA
TLV2544Q/TLV2548Q
40
125
°C
Operating free-air temperature, TA
TLV2548M
55
125
°C
electrical characteristics over recommended operating free-air temperature range, VCC = VREFP =
3 V to 5.5 V, SCLK frequency = 20 MHz at 5 V, 15 MHz at 3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
VCC = 5.5 V, IOH = 0.2 mA at 30 pF load
2.4
V
VOH
High-level output voltage
VCC = 3 V, IOH = -20 A at 30 pF load
VCC0.2
V
VOL
Low-level output voltage
VCC = 5.5 V, IOL = 0.8 mA at 30 pF load
0.4
V
VOL
Low-level output voltage
VCC = 3 V, IOL = 20 A at 30 pF load
0.1
V
IOZ
Off-state output current
(high-impedance-state)
VO = VCC
CS = VCC
1
2.5
A
IOZ
Off-state output current
(high-impedance-state)
VO = 0
CS = VCC
2.5
1
A
IIH
High-level input current
VI = VCC
0.005
2.5
A
IIL
Low-level input current
VI = 0 V
0.005
2.5
A
CS at 0 V, Ext ref
VCC = 4.5 V to 5.5 V
2
mA
Operating supply current, normal
CS at 0 V, Ext ref
VCC = 3 V to 3.3 V
1
mA
Operating supply current, normal
sampling (short)
CS at 0 V, Int ref
VCC = 4.5 V to 5.5 V
2.4
mA
ICC
sampling (short)
CS at 0 V, Int ref
VCC = 3 V to 3.3 V
1.7
mA
ICC
CS at 0 V, Ext ref
VCC = 4.5 V to 5.5 V
1.1
mA
Operating supply current, extended
CS at 0 V, Ext ref
VCC = 3 V to 3.3 V
1
mA
Operating supply current, extended
sampling
CS at 0 V, Int ref
VCC = 4.5 V to 5.5 V
2.1
mA
sampling
CS at 0 V, Int ref
VCC = 3 V to 3.3 V
1.7
mA
Internal reference supply current
CS at 0 V, VCC = 4.5 V to 5.5 V
1
mA
Internal reference supply current
VCC = 3 V to 3.3 V
0.7
mA
ICC(PD)
Power down supply current
for all digital inputs,
VCC = 4.5 V to 5.5 V, Ext clock
1
A
ICC(PD)
for all digital inputs,
0
≤ VI ≤ 0.3 V or
VI ≥ VCC 0.3 V, SCLK = 0
VCC = 3 V to 3.3 V, Ext clock
1
A
ICC(AUTOPWDN)
Auto power-down current for all
digital inputs, 0
≤ VI ≤ 0.3 V or
VCC = 4.5 V to 5.5 V, Ext clock, Ext ref
1
A
ICC(AUTOPWDN)
digital inputs, 0
≤ VI ≤ 0.3 V or
VI ≥ VCC 0.3 V, SCLK = 0
VCC = 3 V to 3.3 V, Ext ref, Ext clock
1§
A
Selected channel leakage current
Selected channel at VCC
2.5
A
Selected channel leakage current
Selected channel at 0 V
2.5
A
Maximum EXT analog reference
current into REFP (use external
reference)
VREFP = VCC = 5.5 V, VREFM = GND
20
A
Ci
Input capacitance
Analog inputs
45
50
pF
Ci
Input capacitance
Control Inputs
5
25
pF
Zi
Input MUX ON resistance
VCC = 4.5 V
500
Zi
Input MUX ON resistance
VCC = 3 V
600
All typical values are at VCC = 5 V, TA = 25°C.
1.2 mA typical if internal reference is used, 165 A typical if internal clock is used.
§ 0.8 mA typical if internal reference is used, 116 A typical if internal clock is used.
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