CY8C3865LTI-059 datasheet(88/129 Pages) CYPRESS

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PSoC® 3: CY8C38 Family

Data Sheet

Document Number: 001-11729 Rev. *R

Page 88 of 129

11.2.6 Current Digital-to-analog Converter (IDAC)

See the IDAC component data sheet in PSoC Creator for full electrical specifications and APIs.

Unless otherwise specified, all charts and graphs show typical values.

VICM

Input common mode voltage

High current / fast mode

VSSA

–VDDA – 0.1

Low current / slow mode

VSSA

–VDDA

Ultra low power mode

VSSA

–VDDA – 0.9

CMRR

Common mode rejection ratio

–

ICMP

High current mode/fast mode[42]

––

400

µA

Low current mode/slow mode[42]

––

100

µA

Ultra low-power mode[42]

–6

–

µA

Table 11-29. Comparator DC Specifications (continued)

Parameter

Description

Conditions

Min

Typ

Max

Units

Table 11-30. Comparator AC Specifications

Parameter

Description

Conditions

Min

Typ

Max

Units

TRESP

Response time, high current

mode[42]

50 mV overdrive, measured

pin-to-pin

–

110

Response time, low current

mode[42]

50 mV overdrive, measured

pin-to-pin

–

155

200

Response time, ultra low-power

mode[42]

50 mV overdrive, measured

pin-to-pin

–55

–

µs

Table 11-31. IDAC DC Specifications

Parameter

Description

Conditions

Min

Typ

Max

Units

Resolution

–

bits

IOUT

Output current at code = 255

Range = 2.048 mA, code = 255,

VDDA ≥ 2.7 V, Rload = 600 Ω

–2.048

–

Range = 2.048 mA, High mode,

code = 255, VDDA ≤ 2.7 V, Rload =

300

–2.048

–

Range = 255 µA, code = 255, Rload

= 600

–255

–

µA

Range = 31.875 µA, code = 255,

Rload = 600

–

31.875

–

µA

Monotonicity

–

Yes

Ezs

Zero scale error

–

±1

LSB

Gain error

Range = 2.048 mA, 25 °C

–

±2.5

Range = 255 µA, 25 ° C

–

±2.5

Range = 31.875 µA, 25 ° C

–

±3.5

TC_Eg

Temperature coefficient of gain

error

Range = 2.048 mA

–

0.04

% / °C

Range = 255 µA

–

0.04

% / °C

Range = 31.875 µA

–

0.05

% / °C

Note

42. Based on device characterization (Not production tested).

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