JAJSOX0A March 2024 – June 2024 ADS127L18
ADVANCE INFORMATION
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
ANALOG INPUTS, MAX-SPEED MODE | |||||||
Input current, differential input voltage |
Input buffers off | 125 | µA/V | ||||
Input buffers off, 2x input range | 60 | ||||||
Input buffers on | ±4 | µA | |||||
Input current drift, differential input voltage |
Input buffers off | 5 | nA/V/°C | ||||
Input buffers off, 2x input range | 2 | ||||||
Input buffers on | 20 | nA/°C | |||||
Input current, common-mode input voltage |
Input buffers off | 6.5 | µA/V | ||||
Input buffers off, 2x input range | 3 | ||||||
Input buffers on | ±4 | µA | |||||
ANALOG INPUTS, HIGH-SPEED MODE | |||||||
Input current, differential input voltage |
Input buffers off | 95 | µA/V | ||||
Input buffers off, 2x input range | 47 | ||||||
Input buffers on | ±3 | µA | |||||
Input current drift, differential input voltage |
Input buffers off | 3 | nA/V/°C | ||||
Input buffers off, 2x input range | 1.5 | ||||||
Input buffers on | 5 | nA/°C | |||||
Input current, common-mode input voltage |
Input buffers off | 5 | µA/V | ||||
Input buffers off, 2x input range | 2.5 | ||||||
Input buffers on | ±3 | µA | |||||
ANALOG INPUTS, MID-SPEED MODE | |||||||
Input current, differential input voltage |
Input buffers off | 47 | µA/V | ||||
Input buffers off, 2x input range | 25 | ||||||
Input buffers on | ±1.5 | µA | |||||
Input current drift, differential input voltage |
Input buffers off | 2 | nA/V/°C | ||||
Input buffers off, 2x input range | 1 | ||||||
Input buffers on | 5 | nA/°C | |||||
Input current, common-mode input voltage |
Input buffers off | 2.5 | µA/V | ||||
Input buffers off, 2x input range | 1.3 | ||||||
Input buffers on | ±1.5 | µA | |||||
ANALOG INPUTS, LOW-SPEED MODE | |||||||
Input current, differential input voltage |
Input buffers off | 12 | µA/V | ||||
Input buffers off, 2x input range | 6 | ||||||
Input buffers on | ±0.4 | µA | |||||
Input current drift, differential input voltage |
Input buffers off | 1 | nA/V/°C | ||||
Input buffers off, 2x input range | 0.5 | ||||||
Input buffers on | 0.2 | nA/°C | |||||
Input current, common-mode input voltage |
Input buffers off | 0.6 | µA/V | ||||
Input buffers off, 2x input range | 0.3 | ||||||
Input buffers on | ±0.4 | µA | |||||
DC PERFORMANCE | |||||||
Resolution | OSR ≥ 32 | 24 | Bits | ||||
Noise | See the Noise Performance section for details | ||||||
INL | Integral nonlinearity (1) | TA = 25°C ± 5°C | 0.4 | TBD | ppm of FSR | ||
TA = 0°C to 70°C | 0.4 | TBD | |||||
TA = –40°C to 125°C | 0.4 | TBD | |||||
Max-speed mode | 1.5 | ||||||
Offset error | TA = 25°C | –250 | ±30 | 250 | µV | ||
Offset drift | 50 | 200 | nV/°C | ||||
Gain error | TA = 25°C | –2500 | ±200 | 2500 | ppm of FSR | ||
Gain drift | 0.5 | 1.0 | ppm of FSR/°C | ||||
NMRR | Normal-mode rejection ratio | fIN = 50Hz (±1Hz), fDATA = 50SPS | 100 | dB | |||
fIN = 60Hz (±1Hz), fDATA = 60SPS | 100 | ||||||
CMRR | Common-mode rejection ratio | At dc | 110 | 130 | dB | ||
Up to 10kHz | 115 | ||||||
At dc, 2x input range | 95 | ||||||
PSRR | Power-supply rejection ratio | AVDD1, dc | 100 | 120 | dB | ||
AVDD2, dc | 115 | 130 | |||||
IOVDD, dc | 115 | 130 | |||||
AC PERFORMANCE, MAX-SPEED MODE | |||||||
fDATA | Data rate | Wideband filter | 4 | 512 | kSPS | ||
Low-latency filter | 0.1024 | 1365.3 | kSPS | ||||
Crosstalk | fIN = 1kHz, VIN = –0.2dbFS (3) | -120 | dB | ||||
DR | Dynamic range | Inputs shorted, OSR = 64, fDATA = 256kSPS |
Wideband filter | 109 | 111.5 | dB | |
Wideband filter, VREF = 2.5V |
107.5 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
108.5 | ||||||
Low-latency filter | 112 | 114 | |||||
Low-latency filter, VREF = 2.5V |
110.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
111 | ||||||
SNR | Signal-to-noise ratio | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 256kSPS |
Wideband filter | 110 | dB | ||
Wideband filter, VREF = 2.5V |
106 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
107 | ||||||
Low-latency filter | 112 | ||||||
Low-latency filter, VREF = 2.5V |
108.5 | ||||||
Low-latency filter VREF = 2.5V, 2x input range |
110 | ||||||
THD | Total harmonic distortion | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 200kSPS, 9 harmonics |
VREF = 2.5V | –119 | TBD | dB | |
VREF = 4.096V | –110 | TBD | dB | ||||
IMD | Intermodulation distortion | fIN = 9.7kHz and 10.3kHz, VIN = –6.5dBFS |
Second-order terms | –120 | dB | ||
Third-order terms | –120 | ||||||
SFDR | Spurious-free dynamic range | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64 | 110 | dB | |||
Phase match | Channel to channel, fIN = 200kHz | 0.25 | TBD | ns | |||
AC PERFORMANCE, HIGH-SPEED MODE | |||||||
fDATA | Data rate | Wideband filter | 3.125 | 400 | kSPS | ||
Low-latency filter | 0.08 | 1067 | |||||
Crosstalk | fIN = 1kHz, VIN = –0.2dBFS (3) | -130 | dB | ||||
DR | Dynamic range | Inputs shorted, OSR = 64, fDATA = 200kSPS |
Wideband filter | 109 | 111.5 | dB | |
Wideband filter, VREF = 2.5V |
107.5 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
108.5 | ||||||
Low-latency filter | 112 | 114 | |||||
Low-latency filter, VREF = 2.5V |
110.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
111 | ||||||
SNR | Signal-to-noise ratio | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 200kSPS |
Wideband filter | 110 | dB | ||
Wideband filter, VREF = 2.5V |
106 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
107 | ||||||
Low-latency filter | 112 | ||||||
Low-latency filter, VREF = 2.5V |
108.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
110 | ||||||
THD | Total harmonic distortion | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 200kSPS, 9 harmonics |
VREF = 2.5V | –125 | TBD | dB | |
VREF = 4.096V | –125 | TBD | dB | ||||
IMD | Intermodulation distortion | fIN = 9.7kHz and 10.3kHz, VIN = –6.5dBFS | Second-order terms | –125 | dB | ||
Third-order terms | –125 | dB | |||||
SFDR | Spurious-free dynamic range | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64 | 125 | dB | |||
Phase match | Channel to channel, fIN = 160kHz | 0.25 | TBD | ns | |||
AC PERFORMANCE, MID-SPEED MODE | |||||||
fDATA | Data rate | Wideband filter | 1.5625 | 200 | kSPS | ||
Low-latency filter | 0.08 | 533.3 | |||||
Crosstalk | fIN = 1kHz, VIN = –0.2dBFS(3) | -135 | dB | ||||
DR | Dynamic range | Inputs shorted, OSR = 64, fDATA = 100kSPS |
Wideband filter | 109 | 111.5 | dB | |
Wideband filter, VREF = 2.5V |
107.5 | ||||||
Wideband filter, VREF = 2.5V 2x input range |
108.5 | ||||||
Low-latency filter | 112 | 114 | |||||
Low-latency filter, VREF = 2.5V |
110.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
111 | ||||||
SNR | Signal-to-noise ratio | fIN = 1kHz, VIN = –0.2dbFS, OSR = 64, fDATA = 100kSPS |
Wideband filter | 110 | dB | ||
Wideband filter, VREF = 2.5V |
106 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
107 | ||||||
Low-latency filter | 112 | ||||||
Low-latency filter, VREF = 2.5V |
108.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
110 | ||||||
THD | Total harmonic distortion | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 200kSPS, 9 harmonics |
VREF = 2.5V | –125 | TBD | dB | |
VREF = 4.096V | –125 | TBD | dB | ||||
IMD | Intermodulation distortion | fIN = 9.7kHz and 10.3kHz, VIN = –6.5dbFS | Second-order terms | –125 | dB | ||
Third-order terms | –125 | ||||||
SFDR | Spurious-free dynamic range | fIN = 1kHz, VIN = -0.2dbFS, OSR = 64 | 125 | dB | |||
Phase match | Channel to channel, fIN = 80kHz | 0.25 | TBD | ns | |||
AC PERFORMANCE, LOW-SPEED MODE | |||||||
fDATA | Data rate | Wideband filter | 0.390625 | 50 | kSPS | ||
Low-latency filter | 0.01 | 133.3 | |||||
Crosstalk | fIN = 1kHz, VIN = –0.2dBFS (3) | -135 | dB | ||||
DR | Dynamic range | Inputs shorted, OSR = 64, fDATA = 25kSPS |
Wideband filter | 109 | 112 | dB | |
Wideband filter, VREF = 2.5V |
107.5 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
108.5 | ||||||
Low-latency filter | 111.5 | 114.5 | |||||
Low-latency filter, VREF = 2.5V |
110.5 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
111.5 | ||||||
SNR | Signal-to-noise ratio | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 25kSPS |
Wideband filter | 110 | dB | ||
Wideband filter, VREF = 2.5V |
106 | ||||||
Wideband filter, VREF = 2.5V, 2x input range |
108 | ||||||
Low-latency filter | 112 | ||||||
Low-latency filter, VREF = 2.5V |
108 | ||||||
Low-latency filter, VREF = 2.5V, 2x input range |
110 | ||||||
THD | Total harmonic distortion | fIN = 1 kHz, VIN = –0.2dBFS, OSR = 64, fDATA = 25kSPS, 9 harmonics |
VREF = 2.5V | –125 | TBD | dB | |
VREF = 4.096V | –125 | TBD | dB | ||||
IMD | Intermodulation distortion | fIN = 9.7kHz and 10.3kHz, VIN = –6.5dBFS | Second-order terms | –125 | dB | ||
Third-order terms | –125 | dB | |||||
SFDR | Spurious-free dynamic range | fIN = 1kHz, VIN = –0.2dBFS, OSR = 64 | 125 | dB | |||
Phase match | Channel to channel, fIN = 20kHz | 0.25 | TBD | ns | |||
WIDEBAND FILTER CHARACTERISTICS | |||||||
Pass-band frequency | Within envelope of pass-band ripple | 0.4 ∙ fDATA | Hz | ||||
–0.1dB frequency | 0.4125 ∙ fDATA | ||||||
–3dB frequency | 0.4374 ∙ fDATA | ||||||
Pass-band ripple | –0.0004 | 0.0004 | dB | ||||
Stop-band frequency | At stop-band attenuation | 0.5 · fDATA | Hz | ||||
Stop-band attenuation (2) | 106 | dB | |||||
Group delay | 34 / fDATA | s | |||||
Settling time | 68 / fDATA | s | |||||
VOLTAGE REFERENCE INPUTS | |||||||
REFP and REFN input current | REFP buffer off | Max-speed mode | 225 | µA/V/ch | |||
High-speed mode | 190 | ||||||
Mid-speed mode | 130 | ||||||
Low-speed mode | 80 | ||||||
REFP input current | REFP buffer on | ±2 | µA/ch | ||||
REFP and REFN input current drift |
REFP buffer off | Max-speed mode | 10 | nA/℃/ch | |||
High-speed mode | 10 | ||||||
Mid-speed mode | 10 | ||||||
Low-speed mode | 10 | ||||||
REFP input current drift | REFP buffer on | 10 | nA/℃/ch | ||||
INTERNAL OSCILLATOR | |||||||
f(OSC) | Oscillator frequency | 25.4 | 25.6 | 25.8 | MHz | ||
VCM OUTPUT VOLTAGE | |||||||
Output voltage | (AVDD1 + AVSS) / 2 | V | |||||
Accuracy | –1% | ±0.1% | 1% | ||||
Voltage noise | 1kHz bandwidth | 25 | µVRMS | ||||
Start-up time | CL = 100nF | 1 | ms | ||||
Capacitive load | 100 | nF | |||||
Resistive load | 2 | kΩ | |||||
Short-circuit current limit | 10 | mA | |||||
DIGITAL INPUTS/OUTPUTS | |||||||
VOL | Logic-low output level | OUT_DRV = 0b, IOL = 2mA | 0.2 ∙ IOVDD | V | |||
OUT_DRV = 1b, IOL = 1mA | 0.2 ∙ IOVDD | ||||||
VOH | Logic-high output level | OUT_DRV = 0b, IOH = –2mA | 0.8 ∙ IOVDD | V | |||
OUT_DRV = 1b, IOH = –1mA | 0.8 ∙ IOVDD | ||||||
Input hysteresis | 150 | mV | |||||
Input current | –1 | 1 | µA | ||||
ANALOG SUPPLY CURRENT | |||||||
IAVDD1, IAVSS | AVDD1, AVSS current (buffers off) |
One active channel | Max-speed mode | 3.4 | 3.7 | mA | |
Each additional channel | 1.5 | 1.7 | mA/ch | ||||
One active channel | High-speed mode | 3.0 | 3.3 | mA | |||
Each additional channel | 1.2 | 1.3 | mA/ch | ||||
One active channel | Mid-speed mode | 2.2 | 2.5 | mA | |||
Each additional channel | 0.5 | 0.6 | mA/ch | ||||
1 or 8 active channels | Low-speed mode | 1.7 | 1.9 | mA | |||
Standby mode | 35 | µA/ch | |||||
Power-down mode | 5 | ||||||
AVDD1, AVSS buffer current | Input buffers | Max-speed mode | 1.75 | 2.3 | mA/buffer | ||
High-speed mode | 1.35 | 1.9 | |||||
Mid-speed mode | 0.7 | 1.0 | |||||
Low-speed mode | 0.2 | 0.3 | |||||
REFP buffers | Max-speed mode | 1.8 | 2.0 | mA/buffer | |||
High-speed mode | 1.5 | 1.6 | |||||
Mid-speed mode | 1 | 1.1 | |||||
Low-speed mode | 0.4 | 0.5 | |||||
VCM buffer | 0.1 | mA | |||||
IAVDD2, IAVSS | AVDD2, AVSS current | Max-speed mode | 4.5 | 4.9 | mA/ch | ||
High-speed mode | 3.5 | 3.8 | |||||
Mid-speed mode | 2.2 | 2.4 | |||||
Low-speed mode | 0.85 | 0.95 | |||||
Standby mode | 60 | µA/ch | |||||
Power-down mode | 1 | ||||||
DIGITAL SUPPLY CURRENT | |||||||
IIOVDD | IOVDD current | Wideband filter OSR = 32 |
Max-speed mode | 2.7 | 3.4 | mA/ch | |
High-speed mode | 2.1 | 2.7 | |||||
Mid-speed mode | 1.0 | 1.4 | |||||
Low-speed mode | 0.3 | 0.4 | |||||
Low-latency filter OSR = 32 |
Max-speed mode | 0.8 | 1.2 | ||||
High-speed mode | 0.6 | 1 | |||||
Mid-speed mode | 0.45 | 0.6 | |||||
Low-speed mode | 0.15 | 0.2 | |||||
Standby mode | External clock | 10 | µA/ch | ||||
Internal oscillator | 40 | ||||||
Power-down mode | 10 | ||||||
POWER DISSIPATION | |||||||
PD | Power dissipation (all channels active) |
ADS127L14 wideband filter, AVDD2 = 1.8V, buffers off |
Max-speed mode | 91 | 104 | mW | |
High-speed mode | 73 | 83 | |||||
Mid-speed mode | 42 | 49 | |||||
Low-speed mode | 17 | 19 | |||||
ADS127L14 low-latency filter, AVDD2 = 1.8V, buffers off |
Max-speed mode | 78 | 88 | ||||
High-speed mode | 63 | 71 | |||||
Mid-speed mode | 38 | 43 | |||||
Low-speed mode | 16 | 18 | |||||
ADS127L18 wideband filter, AVDD2 = 1.8V, buffers off |
Max-speed mode | 173 | 198 | mW | |||
High-speed mode | 138 | 156 | |||||
Mid-speed mode | 75 | 88 | |||||
Low-speed mode | 25 | 29 | |||||
ADS127L18 low-latency filter, AVDD2 = 1.8V, buffers off |
Max-speed mode | 146 | 166 | ||||
High-speed mode | 116 | 131 | |||||
Mid-speed mode | 67 | 77 | |||||
Low-speed mode | 23 | 26 |