FS32R274VBK2MMM datasheet(36/78 Pages) NXP

36 / 78 page

7.3 DAC electrical specifications

NOTE

• All data is measured in single ended mode. Differential

mode is guaranteed by design.

• Specifications guaranteed only if factory trims are not

overridden.

Table 27. DAC parameters

Symbol

Parameter

Condition

Min

Typ

Max

Unit

NBIT

Bits

Base bits

PWM bits

—

(extra

lsb's)

—

Bits

SPSDAC

Sample rate

—

MSam

ples/s

DNL

Linearity1

—

-24

—

LSB

Vout

Output Voltage1, 2, 3

Single-Ended, Rl = 300 Ω

1.2

—

1.35

Iout

Full-Scale Output Current

DAC full-scale adjust bits set to

01 or 10

4.0

—

4.5

NDAC

DAC output noise 1, 4

@250 kHz

@100 kHz

@10 kHz

@1 kHz

—

170

nV/

sqrt(Hz

)

SOE

Static Offset Error1, 2

Single-Ended

Differential with the full-scale

adjust bits set to either 01 or 10

-30

100

TOE

Transient Offset Error1, 2, 5

After low-pass filter and

averaging

—

0.05

LSB

tDV

Transient Time Delay Variation 1, 2, 6

LSB step

MSB step

—

Output compliance

single-ended, only the DNL

specification is guaranteed. The

TOE and Tdv may be degraded.

—

1.35

tempco

Temperature coefficient

—

–1

—

1.0

LSB/K

PSRR

Power Supply Rejection Ratio7

Freq < 250 KHz

—

1. DAC linearity, output swing, noise, TOE, and Tdv specifications are all based upon a 300 Ω DAC output load resistor and

assume that the full-scale adjust bits are set to either 01 or 10. These specifications will NOT be met for other DAC output

load resistor values.

2. Once all of the LVDs have cleared and the DAC is powered on, a one-time wait time of 300 ms is required before the DAC

output signal is valid.

3. The full-scale DAC output is trimmed to 1.30 V ±10 mV with all DAC inputs set to 1 including both full-scale adjust bits.

4. Rl = 300 Ω, 10uF capacitor between Vdd_HV_DAC and DAC_C, ideal supply

5. Difference between ideal and real (Va+Vb/2), for all base and PWM LSBs

6. Falling edge to falling edge or rising edge to rising edge. Any transition DACn -> DACn + 1

Analog modules

S32R274/S32R264 Series Data Sheet, Rev. 6, 06/2021

NXP Semiconductors

FS32R274VBK2MMM Datasheet(PDF) 36 Page - NXP Semiconductors

FS32R274VBK2MMM Datasheet(HTML) 36 Page - NXP Semiconductors

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