Part A
ADS8341E
Техасские инструменты
- Lifecycle
- Active
- Stock
- 6648 ПКС
- Package
- SSOP-16
- Series
- Сбор данных - аналогово-цифровые преобразователи (ADC)
Replacement verdict
Not a drop-in replacement
The ADS8341E and ADS830EG4 are not functionally interchangeable: the ADS8341E is a 4-channel, 16-bit successive-approximation ADC with a serial SPI/QSPI/MICROWIRE interface in a 16-pin SSOP, while the ADS830EG4 is a single-channel, 8-bit pipelined ADC with a parallel output interface in a 24-pin SSOP. They differ in resolution, channel count, output interface, and package footprint, so substituting one for the other requires a full board and firmware redesign.
Different resolution
Different channel count
Different output interface
Different package footprint
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADS8341E | ADS830EG4 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 8 bit | Resolution determines the smallest signal change the ADC can distinguish; a 16-bit part offers far finer quantization than an 8-bit part, so they are not functionally interchangeable in precision applications. |
| Sampling Rate | 200 kSPS | 60 MSPS | Maximum sample rate defines the bandwidth of signals the converter can capture; the ADS830 is a high-speed pipeline ADC while the ADS8341 is a much slower successive-approximation device. |
| Architecture | SAR (Successive Approximation) | Pipeline | Converter architecture affects latency, power, and suitable applications; SAR suits multiplexed precision measurements, while pipeline suits high-speed continuous sampling. |
| Number of Input Channels | 4 single-ended / 2 differential | 1 single-ended | Channel count determines how many signals can be digitized; the ADS8341 supports multiplexed multi-channel acquisition, whereas the ADS830 handles a single input. |
| Input Interface / Output Type | SPI-compatible serial | Parallel | The digital interface must match the host system; serial SPI versus parallel output changes pin count, board layout, and controller requirements. |
| Supply Voltage | 2.7 V to 5.25 V | 5 V (single supply) | Supply voltage compatibility affects whether the part can drop into an existing rail; the ADS8341 is more flexible across low-voltage systems. |
| Analog Input Range | 0 V to VREF (unipolar) / ±VREF (bipolar) | 1.5 V to 3.5 V (internal reference) | Input range must match the sensor or signal swing; differing ranges require different front-end conditioning and reference design. |
| Package | SSOP-16 | SSOP-20 | Package footprint and pin count affect PCB layout and drop-in compatibility; different packages generally require a board redesign. |
| Typical Power Consumption | Low (approx. 1.5 mW at 5 V, 200 kSPS) | Higher (approx. 190 mW at 5 V, 60 MSPS) | Power budget and thermal design depend on consumption; the high-speed pipeline ADC draws substantially more power than the low-power SAR device. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS8341E | ADS830EG4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Obsolete |
| Number of Bits | 16 | 8 |
| Sampling Rate(Per Second) | 100k | 60M |
| Number of Inputs | 2, 4 | 1 |
| Input Type | Differential, Single Ended | Differential, Single Ended |
| Data Interface | SPI | Parallel |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 1 | 1 |
| Architecture | SAR | Pipelined |
| Reference Type | External | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 3.6V, 5V | 5V |
| Voltage - Supply, Digital | 2.7V ~ 3.6V, 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the primary functional differences between the ADS8341E and ADS830EG4?
The ADS8341E is a 16-bit, 4-channel successive-approximation register (SAR) analog-to-digital converter with a serial SPI/QSPI interface, operating from a 2.7 V to 5 V supply. The ADS830EG4 is an 8-bit, 60 MSPS pipelined analog-to-digital converter with a parallel output interface, operating from a 5 V supply. They differ in resolution, architecture, channel count, interface type, and sample rate.
Are the ADS8341E and ADS830EG4 pin-to-pin compatible?
No. The ADS8341E is offered in a 16-pin SSOP package, while the ADS830EG4 is offered in a 20-pin SSOP package. The pin counts, pin functions, and package footprints differ, so they are not directly interchangeable on the same PCB land pattern.
Can the ADS8341E and ADS830EG4 be used in the same application?
They target different application classes. The ADS8341E suits multi-channel, medium-speed data acquisition requiring 16-bit resolution, such as industrial process control and portable instrumentation. The ADS830EG4 suits high-speed, single-channel signal digitization requiring 60 MSPS, such as video processing and communications receivers. Substitution requires validating resolution, sample rate, interface, and supply requirements against the system design.
What are the maximum sample rates of the ADS8341E and ADS830EG4?
The ADS8341E has a maximum sampling rate of 100 kSPS. The ADS830EG4 has a maximum sampling rate of 60 MSPS. The ADS830EG4 provides roughly 600 times the throughput of the ADS8341E but at 8-bit rather than 16-bit resolution.
What digital interfaces do the ADS8341E and ADS830EG4 use?
The ADS8341E uses a serial interface compatible with SPI, QSPI, and Microwire protocols. The ADS830EG4 provides a parallel 8-bit output bus with a dedicated clock input. System designers must account for these interface differences when considering either device.
What are the supply voltage requirements for the ADS8341E and ADS830EG4?
The ADS8341E operates from a single supply of 2.7 V to 5 V. The ADS830EG4 operates from a 5 V analog supply and a 5 V digital supply. The ADS8341E offers wider low-voltage flexibility, while the ADS830EG4 requires a 5 V rail.
How do the input configurations of the ADS8341E and ADS830EG4 differ?
The ADS8341E provides four single-ended inputs or two differential inputs, selectable through its serial configuration. The ADS830EG4 provides a single differential analog input. The ADS8341E supports multi-channel multiplexing, whereas the ADS830EG4 is a single-channel high-speed converter.
What are the typical power consumption figures for the ADS8341E and ADS830EG4?
The ADS8341E typically consumes approximately 1.2 mW at 100 kSPS with a 2.7 V supply. The ADS830EG4 typically consumes approximately 210 mW at 60 MSPS with a 5 V supply. The ADS830EG4 consumes substantially more power due to its high-speed pipelined architecture.