Rainbow-electronics MAX1033 Manual do Utilizador descarregar pdf (Página 3)

MAX1032/MAX1033

8-/4-Channel, ±12V Multirange Inputs,

Serial 14-Bit ADCs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(AV

DD1

= AV

DD2

= DV

DDO

= 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f

CLK

= 3.5MHz (50% duty cycle),

external clock mode, V

REF

= 4.096V (external reference operation), REFCAP = AV

DD1

, maximum single-ended bipolar input range

(±12V), C

DOUT

= 50pF, C

SSTRB

= 50pF, T

= -40°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

DYNAMIC SPECIFICATIONS f

IN(SINE-WAVE)

= 5kHz, V

= FSR - 0.05dB, f

SAMPLE

= 130ksps (Notes 1, 2)

Differential inputs, FSR = 48V 85

Single-ended inputs, FSR = 24V 84

Single-ended inputs, FSR = 12V 83

Signal-to-Noise Plus Distortion SINAD

Single-ended inputs, FSR = 6V 79 81

Differential inputs, FSR = 48V 85

Single-ended inputs, FSR = 24V 84

Single-ended inputs, FSR = 12V 83

Signal-to-Noise Ratio SNR

Single-ended inputs, FSR = 6V 81

Total Harmonic Distortion

(Up to the 5th Harmonic)

THD -97 dB

Spurious-Free Dynamic Range SFDR 92 99 dB

Aperture Delay t

Figure 21 15 ns

Aperture Jitter t

Figure 21

100

Channel-to-Channel Isolation

105

CONVERSION RATE

External clock mode, Figure 2

114

External acquisition mode, Figure 3 84

Byte-Wide Throughput Rate

SAMPLE

Internal clock mode, Figure 4

106

ksps

ANALOG INPUTS (CH0–CH3 MAX1033, CH0–CH7 MAX1032, AGND1)

Small-Signal Bandwidth All input ranges, V

= 100mV

P-P

(Note 2) 2

MHz

Full-Power Bandwidth All input ranges, V

= 4V

P-P

(Note 2)

700

kHz

R[2:1] = 001 -3 +3

R[2:1] = 010 -6 0

R[2:1] = 011 0 +6

R[2:1] = 100 -6 +6

R[2:1] = 101 -12 0

R[2:1] = 110 0

+12

Input Voltage Range (Table 6) V

CH_

R[2:1] = 111 -12

+12

True-Differential Analog

Common-Mode Voltage Range

CMDR

DIF/SGL = 1 (Note 4) -14

+10

Common-Mode Rejection Ratio CMRR DIF/SGL = 1, input voltage range = ±3V 75 dB

Input Current I

CH_

-12V < V

CH_

< +12V

-1250 +900

µA

Input Capacitance C

CH_

5pF

Input Resistance R

CH_

17 kΩ

1 2 3 4 5 6 7 8 ... 30 31

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