TLV5628C, TLV5628I
OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS
SLAS108A – JANUARY 1995 – REVISED NOVEMBER 1995
8POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range,
VDD = 3 V to 3.6 V, Vref = 2 V, × 1 gain output range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IIH High-level digital input current VI = VDD ±10 µA
IIL Low-level digital input current VI = 0 V ±10 µA
IO(sink) Output sink current
p
20 µA
IO(source) Output source current
u
u
1 mA
Input capacitance 15 p
iReference input capacitance 15
IDD Supply current VDD = 3.3 V 4 mA
Iref Reference input current VDD = 3.3 V, V ref = 1.5 V ±10 µA
ELLinearity error (end point corrected) V ref = 1.25 V, ×2 gain (see Note 1) ±1 LSB
EDDifferential linearity error V ref = 1.25 V, ×2 gain (see Note 2) ±0.9 LSB
EZS Zero-scale error V ref = 1.25 V, ×2 gain (see Note 3) 0 30 mV
Zero-scale error temperature coefficient V ref = 1.25 V, ×2 gain (see Note 4) 10 µV/°C
EFS Full-scale error V ref = 1.25 V, ×2 gain (see Note 5) ±60 mV
Full-scale error temperature coefficient Vref = 1.25 V, ×2 gain (see Note 6) ±25 µV/°C
PSRR Power supply sensitivity See Notes 7 and 8 0.5 mV/V
NOTES: 1. Integral nonlinearity (INL) is the maximum deviation of the output from the line between zero-scale and full scale (excluding the
effects of zero code and full-scale errors).
2. Differential nonlinearity (DNL) is the difference between the measured and ideal 1 LSB amplitude change of any two adjacent codes.
Monotonic means the output voltage changes in the same direction (or remains constant) as a change in the digital input code.
3. Zero-scale error is the deviation from zero voltage output when the digital input code is zero.
4. Zero-scale error temperature coefficient is given by: ZSETC = [ZSE(Tmax) – ZSE(Tmin)]/Vref × 106/(Tmax – Tmin).
5. Full-scale error is the deviation from the ideal full-scale output (V ref – 1 LSB) with an output load of 10 kΩ.
6. Full-scale temperature coefficient is given by: FSETC = [FSE(Tmax) – FSE (Tmin)]/Vref × 106/(Tmax – Tmin).
7. Zero-scale error rejection ratio (ZSE-RR) is measured by varying the VDD voltage from 4.5 V to 5.5 V dc and measuring the effect
of this signal on the zero-code output voltage.
8. Full-scale error rejection ratio (FSE-RR) is measured by varing the VDD voltage from 3 V to 3.6 V dc and measuring the ef fect of
this signal on the full-scale output voltage.
operating characteristics over recommended operating free-air temperature range,
VDD = 3 V to 3.6 V, Vref = 2 V, × 1 gain output range (unless otherwise noted)
TEST CONDITIONS MIN TYP MAX UNIT
Output slew rate CL = 100 pF, RL = 10 kΩ1V/µs
Output settling time To 0.5 LSB, CL = 100 pF, RL = 10 kΩ, See Note 9 10 µs
Large-signal bandwidth Measured at –3 dB point 100 kHz
Digital crosstalk CLK = 1-MHz square wave measured at DACA-DACH –50 dB
Reference feedthrough See Note 10 –60 dB
Channel-to-channel isolation See Note 11 –60 dB
Reference input bandwidth See Note 12 100 kHz
NOTES: 9. Settling time is the time for the output signal to remain within ±0.5 LSB of the final measured value for a digital input code change
of 00 hex to FF hex or FF hex to 00 hex. For TLC5628C VDD = 5 V, Vref = 2 V and range = ×2. For TLC5628I VDD = 3 V,
Vref = 1.25 V and range ×2.
10. Reference feedthrough is measured at any DAC output with an input code = 00 hex with a Vref input = 1 V dc + 1 VPP at 10 kHz.
1 1. Channel-to-channel isolation is measured by setting the input code of one DAC to FF hex and the code of all other DACs to 00 hex
with Vref input = 1 V dc + 1 VPP at 10 kHz.
12. Reference bandwidth is a –3 dB bandwidth with an input at V ref = 1.25 V dc + 2 VPP and with a full-scale digital input code.