Datasheet LTC1609 (Analog Devices) - 3

LTC1609
U CONVERTER CHARACTERISTICS The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. With external reference (Notes 5, 6). LTC1609 LTC1609A PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Bipolar Zero Error Drift Bipolar Ranges ±2 ±2 ppm/°C Unipolar Zero Error External Reference = 2.5V, Unipolar Ranges ● ±10 ±10 mV Unipolar Zero Error Drift Unipolar Ranges ±2 ±2 ppm/°C Full-Scale Error Drift ±7 ±7 ppm/°C Full-Scale Error External Reference = 2.5V (Notes 12, 13) ● ±0.50 ±0.25 % Full-Scale Error Drift External Reference = 2.5V ±2 ±2 ppm/°C Power Supply Sensitivity V
U
ANA = VDIG = VDD
U
VDD = 5V ±5% (Note 9) ±8 ±8 LSB
A ALOG I PUT The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) LTC1609/LTC1609A SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Input Range (Note 9) 4.75V ≤ VANA ≤ 5.25V, 4.75V ≤ VDIG ≤ 5.25V, ● ±10, 0V to 5V, etc. V (See Tables 1a and 1b) CIN Analog Input Capacitance 10 pF RIN Analog Input Impedance See Tables 1a and 1b kΩ
U W DY A IC ACCURACY (Notes 5, 14) LTC1609 LTC1609A SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
S/(N + D) Signal-to-(Noise 1kHz Input Signal (Note 14) 87.5 85 87.5 dB + Distortion) Ratio 10kHz Input Signal 87 87 dB 20kHz, – 60dB Input Signal 30 30 dB THD Total Harmonic 1kHz Input Signal, First 5 Harmonics – 100 – 100 –96 dB Distortion 10kHz Input Signal, First 5 Harmonics – 94 – 94 dB Peak Harmonic or 1kHz Input Signal – 102 – 102 dB Spurious Noise 10kHz Input Signal – 94 – 94 dB Full-Power Bandwidth (Note 15) 275 275 kHz –3dB Input Bandwidth 1 1 MHz Aperture Delay 40 40 ns Aperture Jitter Sufficient to Meet AC Specs Sufficient to Meet AC Specs Transient Response Full-Scale Step (Note 9) 2 2 µs Overvoltage Recovery (Note 16) 150 150 ns
U U U INTERNAL REFERENCE CHARACTERISTICS The
●
indicates specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 5) LTC1609/LTC1609A PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 ● 2.470 2.500 2.520 V VREF Output Tempco IOUT = 0 ±5 ppm/°C Internal Reference Source Current 1 µA External Reference Voltage for Specified Linearity (Notes 9, 10) 2.30 2.50 2.70 V External Reference Current Drain External Reference = 2.5V (Note 9) ● 100 µA CAP Output Voltage IOUT = 0 2.50 V 1609fa 3