Datasheet LTC2404, LTC2408 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 4-/8-Channel 24-Bit µPower No Latency ∆∑TM ADCs |
| Pages / Page | 36 / 3 — CONVERTER CHARACTERISTICS The. denotes specifications which apply over … |
| File Format / Size | PDF / 374 Kb |
| Document Language | English |
CONVERTER CHARACTERISTICS The. denotes specifications which apply over the full operating
Model Line for this Datasheet
Text Version of Document
LTC2404/LTC2408
U CONVERTER CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Normal Mode Rejection 50Hz ±2% (Note 8) ● 110 130 dB Power Supply Rejection DC VREF = 2.5V, VIN = 0V 100 dB Power Supply Rejection 60Hz ±2% VREF = 2.5V, VIN = 0V, (Note 7) 110 dB Power Supply Rejection 50Hz ±2% VREF = 2.5V, VIN = 0V, (Note 8) 110 dB
U U U U A ALOG I PUT A D REFERE CE The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range (Note 14) ● – 0.125 • VREF 1.125 • VREF V VREF Reference Voltage Range ● 0.1 VCC V CS(IN) Input Sampling Capacitance 10 pF CS(REF) Reference Sampling Capacitance 15 pF IIN(LEAK) Input Leakage Current CS = VCC ● –10 1 10 nA IREF(LEAK) Reference Leakage Current VREF = 2.5V, CS = VCC ● – 12 1 12 nA IIN(MUX) On Channel Leakage Current VS = 2.5V (Note 15) ● ±20 nA RON MUX On-Resistance IOUT = 1mA, VCC = 2.7V ● 250 300 Ω IOUT = 1mA, VCC = 5V ● 120 250 Ω MUX ∆RON vs Temperature 0.5 %/°C ∆RON vs VS (Note 15) 20 % IS(OFF) MUX Off Input Leakage Channel Off, VS = 2.5V ● ±20 nA ID(OFF) MUX Off Output Leakage Channel Off, VD = 2.5V ● ±20 nA tOPEN MUX Break-Before-Make Interval 290 ns tON Enable Turn-On Time VS = 1.5V, RL = 3.4k, CL = 15pF 490 ns tOFF Enable Turn-Off Time VS = 1.5V, RL = 3.4k, CL = 15pF 190 ns QIRR MUX Off Isolation VIN = 2VP-P, RL = 1k, f = 100kHz 70 dB QINJ Charge Injection RS = 0Ω, CL = 1000pF, VS = 1V ±1 pC CS(OFF) Input Off Capacitance (MUX) 10 pF CD(OFF) Output Off Capacitance (MUX) 10 pF 3
U CONVERTER CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Normal Mode Rejection 50Hz ±2% (Note 8) ● 110 130 dB Power Supply Rejection DC VREF = 2.5V, VIN = 0V 100 dB Power Supply Rejection 60Hz ±2% VREF = 2.5V, VIN = 0V, (Note 7) 110 dB Power Supply Rejection 50Hz ±2% VREF = 2.5V, VIN = 0V, (Note 8) 110 dB
U U U U A ALOG I PUT A D REFERE CE The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range (Note 14) ● – 0.125 • VREF 1.125 • VREF V VREF Reference Voltage Range ● 0.1 VCC V CS(IN) Input Sampling Capacitance 10 pF CS(REF) Reference Sampling Capacitance 15 pF IIN(LEAK) Input Leakage Current CS = VCC ● –10 1 10 nA IREF(LEAK) Reference Leakage Current VREF = 2.5V, CS = VCC ● – 12 1 12 nA IIN(MUX) On Channel Leakage Current VS = 2.5V (Note 15) ● ±20 nA RON MUX On-Resistance IOUT = 1mA, VCC = 2.7V ● 250 300 Ω IOUT = 1mA, VCC = 5V ● 120 250 Ω MUX ∆RON vs Temperature 0.5 %/°C ∆RON vs VS (Note 15) 20 % IS(OFF) MUX Off Input Leakage Channel Off, VS = 2.5V ● ±20 nA ID(OFF) MUX Off Output Leakage Channel Off, VD = 2.5V ● ±20 nA tOPEN MUX Break-Before-Make Interval 290 ns tON Enable Turn-On Time VS = 1.5V, RL = 3.4k, CL = 15pF 490 ns tOFF Enable Turn-Off Time VS = 1.5V, RL = 3.4k, CL = 15pF 190 ns QIRR MUX Off Isolation VIN = 2VP-P, RL = 1k, f = 100kHz 70 dB QINJ Charge Injection RS = 0Ω, CL = 1000pF, VS = 1V ±1 pC CS(OFF) Input Off Capacitance (MUX) 10 pF CD(OFF) Output Off Capacitance (MUX) 10 pF 3
