LTC1861IMS View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC1861IMS

µPower, 12-Bit, 250ksps 1- and 2-Channel ADCs in MSOP

Linear Technology 

LTC1860/LTC1861

TYPICAL PERFORMANCE CHARACTERISTICS

Change in Offset Error vs

Reference Voltage

5

TA = 25oC

4

VCC = 5V

3

2

1

0

–1

–2

–3

–4

–5

0

1

2

3

4

5

REFERENCE VOLTAGE (V)

1860/61 G10

Change in Gain Error vs

Temperature

1.0

VCC = 5V

0.8 VREF = 5V

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

–50 –25

0 25 50 75

TEMPERATURE (oC)

100 125

1860/61 G13

Signal-to-(Noise + Distortion)

vs fIN

100

90

TA = 25oC

VCC = 5V

80 VIN = 0dB

70

SNR

60

50

SINAD

40

30

20

10

0

1

10

100

1000 10000

fIN (kHz)

1860/61 G16

Change in Offset vs Temperature

1.0

VCC = 5V

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

–1.0

–50 –25

0 25 50 75 100 125

TEMPERATURE (oC)

1860/61 G11

Signal-to-(Noise + Distortion)

vs Input Level

80

fIN = 10kHz

70 TA = 25oC

VCC = 5V

60

50

40

30

20

10

0

–40 –35 –30 –25 –20 –15 –10 –5 0

INPUT LEVEL (dB)

1195 G20

Total Harmonic Distortion

vs fIN

0

–10

TA = 25oC

VCC = 5V

–20 VIN = 0dB

–30

–40

–50

–60

–70

–80

–90

–100

1

10

100

fIN (kHz)

1000

1860/61 G17

8

Change in Gain Error vs

Reference Voltage

5

4

VCC = 5V

TA = 25oC

3

2

1

0

–1

–2

–3

–4

–5

0

1

2

3

4

5

REFERENCE VOLTAGE(V)

1860/61 G12

4096 Point FFT

0

fS = 204.1kHz

fIN = 99.5kHz

–20 TA = 25oC

VCC = 5V

–40

–60

–80

–100

–120

0 10 20 30 40 50 60 70 80 90 100

f (kHz)

1860/61 G15

Spurious Free Dynamic Range

vs fIN

100

90

80

70

60

50

40

30

20

10

0

1

TA = 25oC

VCC = 5V

VIN = 0dB

10

100

fIN (kHz)

1000

1860/61 G18

18601fa

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