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LTC1598

4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters

Linear Technology 

LTC1594/LTC1598

CONVERTER AND MULTIPLEXER CHARACTERISTICS The ● denotes the specifications which

apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)

PARAMETER

Resolution (No Missing Codes)

Integral Linearity Error

Differential Linearity Error

Offset Error

Gain Error

REF Input Range

Analog Input Range

MUX Channel Input Leakage Current

MUXOUT Leakage Current

ADCIN Input Leakage Current

CONDITIONS

(Note 6)

(Notes 7, 8)

(Notes 7, 8)

Off Channel

Off Channel

(Note 9)

LTC1594CS/LTC1598CG

MIN TYP MAX

LTC1594IS/LTC1598IG

MIN TYP MAX

● 12

12

●

±3

±3

●

± 3/4

±1

●

±3

±3

●

±8

±8

1.5V to VCC + 0.05V

– 0.05V to VCC + 0.05V

●

±200

± 200

●

±200

± 200

●

±1

±1

UNITS

Bits

LSB

LSB

LSB

LSB

V

V

nA

nA

μA

DYNAMIC ACCURACY (Note 5) fSMPL = 16.8kHz

SYMBOL

S/(N + D)

THD

SFDR

PARAMETER

Signal-to-Noise Plus Distortion Ratio

Total Harmonic Distortion (Up to 5th Harmonic)

Spurious-Free Dynamic Range

Peak Harmonic or Spurious Noise

CONDITIONS

1kHz Input Signal

1kHz Input Signal

1kHz Input Signal

1kHz Input Signal

MIN TYP MAX

71

– 78

80

– 80

UNITS

dB

dB

dB

dB

DIGITAL AND DC ELECTRICAL CHARACTERISTICS The ● denotes the specifications which

apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)

SYMBOL

VIH

VIL

IIH

IIL

VOH

PARAMETER

High Level Input Voltage

Low Level Input Voltage

High Level Input Current

Low Level Input Current

High Level Output Voltage

VOL

IOZ

ISOURCE

ISINK

RREF

Low Level Output Voltage

Hi-Z Output Leakage

Output Source Current

Output Sink Current

Reference Input Resistance

IREF

Reference Current

ICC

Supply Current

CONDITIONS

VCC = 5.25V

VCC = 4.75V

VIN = VCC

VIN = 0V

VCC = 4.75V, IO = – 10μA

VCC = 4.75V, IO = –360A

VCC = 4.75V, IO = 1.6mA

CS = High

VOUT = 0V

VOUT = VCC

CS = VIH

CS = VIL

CS = VCC

tCYC ≥ 760μs, fCLK ≤ 25kHz

tCYC ≥ 60μs, fCLK ≤ 320kHz

CS = VCC, CLK = VCC, DIN = VCC

tCYC ≥ 760μs, fCLK ≤ 25kHz

tCYC ≥ 60μs, fCLK ≤ 320kHz

MIN

● 2.6

●

●

●

● 4.0

● 2.4

●

●

●

●

●

●

TYP MAX

0.8

2.5

– 2.5

4.64

4.62

0.4

±3

– 25

45

5000

55

0.001 2.5

90

90 140

0.001 ±7

320

320 690

UNITS

V

V

μA

μA

V

V

V

μA

mA

mA

MΩ

kΩ

μA

μA

μA

μA

μA

μA

15948fb

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