LTC2411-1IMS-TR Просмотр технического описания (PDF) - Linear Technology

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LTC2411-1IMS-TR

24-Bit No Latency ∆Σ™ ADC with Differential Input and Reference in MSOP

Linear Technology 

LTC2411/LTC2411-1

CO VERTER CHARACTERISTICS The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4)

PARAMETER

Input Common Mode Rejection DC

Input Common Mode Rejection

60Hz ±2% (LTC2411)

Input Common Mode Rejection

50Hz ±2% (LTC2411)

Input Common Mode Rejection

49Hz to 61.2Hz (LTC2411-1)

Input Normal Mode Rejection

60Hz ±2% (LTC2411)

CONDITIONS

2.5V ≤ REF+ ≤ VCC, REF– = GND,

GND ≤ IN– = IN+ ≤ 5V

2.5V ≤ REF+ ≤ VCC, REF– = GND,

GND ≤ IN– = IN+ ≤ 5V, (Note 7)

2.5V ≤ REF+ ≤ VCC, REF– = GND,

GND ≤ IN– = IN+ ≤ 5V, (Note 8)

2.5V < REF+ < VCC, REF– = GND,

GND < IN– = IN+ < VCC (Note 15)

(Note 7)

MIN TYP MAX

q 130 140

q 140

q 140

q 140

q 110 140

Input Normal Mode Rejection

50Hz ±2% (LTC2411)

Input Normal Mode Rejection

49Hz to 61.2Hz (LTC2411-1)

Reference Common Mode

Rejection DC

Power Supply Rejection, DC

Power Supply Rejection, 60Hz ±2%

(LTC2411)

Power Supply Rejection, 50Hz ±2%

(LTC2411)

Power Supply Rejection,

49Hz to 61.2Hz (LTC2411-1)

(Note 8)

(Note 15)

2.5V ≤ REF+ ≤ VCC, GND ≤ REF– ≤ 2.5V,

VREF = 2.5V, IN– = IN+ = GND

REF+ = 2.5V, REF– = GND, IN– = IN+ = GND

REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 7)

REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 8)

REF+ = 2.5V, REF– = GND, IN– = IN+ = GND, (Note 15)

q 110 140

q 87

q 130 140

110

120

120

120

UNITS

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

A ALOG I PUT A D REFERE CE The q denotes specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 3)

SYMBOL

IN+

IN–

VIN

REF+

REF–

VREF

CS (IN+)

CS (IN–)

CS (REF+)

CS (REF–)

IDC_LEAK (IN+)

IDC_LEAK (IN–)

IDC_LEAK (REF+)

IDC_LEAK (REF–)

PARAMETER

Absolute/Common Mode IN+ Voltage

Absolute/Common Mode IN– Voltage

Input Differential Voltage Range

(IN+ – IN–)

Absolute/Common Mode REF+ Voltage

Absolute/Common Mode REF– Voltage

Reference Differential Voltage Range

(REF+ – REF–)

IN+ Sampling Capacitance

IN– Sampling Capacitance

REF+ Sampling Capacitance

REF– Sampling Capacitance

IN+ DC Leakage Current

IN– DC Leakage Current

REF+ DC Leakage Current

REF– DC Leakage Current

CONDITIONS

CS = VCC = 5.5V, IN+ = GND

CS = VCC = 5.5V, IN– = GND

CS = VCC = 5.5V, REF+ = 5V

CS = VCC = 5.5V, REF– = GND

MIN

q GND – 0.3V

q GND – 0.3V

q – VREF/2

q

0.1

q

GND

q

0.1

q

– 10

q

– 10

q

– 10

q

– 10

TYP

MAX

UNITS

VCC + 0.3V

V

VCC + 0.3V

V

VREF/2

V

VCC

V

VCC – 0.1V

V

VCC

V

6

pF

6

pF

6

pF

6

pF

1

10

nA

1

10

nA

1

10

nA

1

10

nA

3

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